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          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GeneralPartnersCapitalAccount" xlink:label="us-gaap_GeneralPartnersCapitalAccount"/>
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          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"/>
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          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
          <link:loc xlink:type="locator" xlink:href="maa-20240331.xsd#maa_AverageDomain" xlink:label="maa_AverageDomain"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="us-gaap_FairValueMeasurementFrequencyDomain"/>
          <link:loc xlink:type="locator" xlink:href="maa-20240331.xsd#maa_YearstomaturityMember" xlink:label="maa_YearstomaturityMember"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationAxis" xlink:label="us-gaap_HedgingDesignationAxis"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures" xlink:label="us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures"/>
          <link:loc xlink:type="locator" xlink:href="maa-20240331.xsd#maa_ScheduleOfCapitalStructureTable" xlink:label="maa_ScheduleOfCapitalStructureTable"/>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingJulyTwentyTwentyThreePropertyMortgageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturing July 2020, Three Property Mortgage [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingJulyTwentyTwentyThreePropertyMortgageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturing July Twenty Twenty Three Property Mortgage [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingJulyTwentyTwentyThreePropertyMortgageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Maturing July 2020 three property mortgage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Transition Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Transition Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Effect of Derivative Instruments on Consolidated Statement of Operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments, Gain (Loss) [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Geographical</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Noncontrolling Interests-Consolidated Real Estate Entities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncontrolling Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Segment Reporting Information By Segment [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Segment Reporting Information, by Segment [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Assets [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConstructionInProgressExpendituresIncurredButNotYetPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued construction in progress</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConstructionInProgressExpendituresIncurredButNotYetPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Construction in Progress Expenditures Incurred but Not yet Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GainonSaleofNonDepreciableAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gainon Saleof Non Depreciable Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GainonSaleofNonDepreciableAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Gain on Sale of Non-Depreciable Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GainonSaleofNonDepreciableAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gain on sale of non-depreciable real estate assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">2028</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year Four</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Right-of-use Leases, Future Minimum Payments, Due in Four Years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetIncomeAttributabletoNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Income Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetIncomeAttributabletoNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income Attributableto Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetIncomeAttributabletoNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Net Income Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PropertyOperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total property operating expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PropertyOperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property Operating Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PropertyOperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Property operating expenses.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PercentageOfRentalRevenueAndOtherIncomeFromLeasingOfApartmentHomes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage Of Rental Revenue From Leasing Of Apartment Homes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PercentageOfRentalRevenueAndOtherIncomeFromLeasingOfApartmentHomes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Rental Revenue And Other Income From Leasing Of Apartment Homes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PercentageOfRentalRevenueAndOtherIncomeFromLeasingOfApartmentHomes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of our total property revenues and total non-property income from leasing of apartment homes, excluding income on deferred compensation plans.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Information [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Instruments and Derivatives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquitySaleSettledSharesAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Settled share amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquitySaleSettledSharesAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Sale Settled Shares Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquitySaleSettledSharesAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity sale settled shares amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureRevenuesAndNoiForReportableSegmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disclosure Revenues And Noi For Reportable Segment [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureRevenuesAndNoiForReportableSegmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure - Revenues and NOI for Reportable Segment [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DueInDecemberTwoThousandAndTwentyTwoSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Due in December two thousand and twenty two senior notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DueInDecemberTwoThousandAndTwentyTwoSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Due In December Two Thousand And Twenty Two Senior Notes Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DueInDecemberTwoThousandAndTwentyTwoSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Due in December 2022, Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeGainLossStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ApartmentBuildingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Apartment Communities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ApartmentBuildingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Apartment Building [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CommonSharesAndOperatingPartnershipUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total common shares and operating partnership units outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CommonSharesAndOperatingPartnershipUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Shares And Operating Partnership Units Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CommonSharesAndOperatingPartnershipUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common Shares and Operating Partnership Units, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ClevenLitigationCaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cleven Litigation Case [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ClevenLitigationCaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cleven Litigation Case [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ClevenLitigationCaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cleven Litigation Case [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomefromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomefromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incomefrom Continuing Operations Including Portion Attributableto Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomefromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reconciliation Of Assets From Segment To Consolidated [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reconciliation of Assets from Segment to Consolidated [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerShareDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings Per Share Disclosure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerShareDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share Disclosure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerShareDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Earnings Per Share Disclosure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets for Reportable Segment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reconciliation of Assets from Segment to Consolidated [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Contribution from noncontrolling interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustment for noncontrolling interests in Operating Partnership</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest, Period Increase (Decrease)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Noncontrolling Interest, Period Increase (Decrease), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net income attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Income (Loss) Attributable to Noncontrolling Interest, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net loss attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net income (loss) attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MAALPCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">M A A L P Capital [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MAALPCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">MAALP Capital [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PrepaymentPenaltiesAndWriteOffsOfUnamortizedCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Prepayment penalties and write-offs of unamortized costs.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PrepaymentPenaltiesAndWriteOffsOfUnamortizedCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepayment Penalties And Write-offs Of Unamortized Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PrepaymentPenaltiesAndWriteOffsOfUnamortizedCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepayment penalties and Write-offs of unamortized costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MarketableEquitySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Marketable Equity Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MarketableEquitySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Marketable Equity Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MarketableEquitySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Marketable equity securities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnsecuredSeniorNotesDueJuneTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Unsecured senior notes due june two thousand twenty four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnsecuredSeniorNotesDueJuneTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Senior Notes Due June Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnsecuredSeniorNotesDueJuneTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured Senior Notes Due June 2024 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Balance Sheet Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Balance Sheet Location [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingAssetReconcilingItemLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment Reporting Asset Reconciling Item [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingAssetReconcilingItemLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, Asset Reconciling Item [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities and equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, State or Province</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, State or Province</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_LitigationCaseTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Litigation Case</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_LitigationCaseTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Litigation Case [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_BasisOfPresentationAndPrinciplesOfConsolidationPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis of Presentation and Principles of Consolidation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_BasisOfPresentationAndPrinciplesOfConsolidationPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Basis Of Presentation And Principles Of Consolidation Policy Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_BasisOfPresentationAndPrinciplesOfConsolidationPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Basis of presentation and principles of consolidation, policy.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance and registration of common shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, New Issues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock shares, outstanding option</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAllocatedToGeneralPartners_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Income Allocated to General Partners</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAllocatedToGeneralPartners_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Allocated to General Partners</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Comprehensive Income (Loss), Net of Tax, Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Comprehensive income attributable to MAA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_A1BillionUnsecuredRevolvingCreditFaciltiyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">$1 billion unsecured revolving credit facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_A1BillionUnsecuredRevolvingCreditFaciltiyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">A1 Billion Unsecured Revolving Credit Faciltiy [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_A1BillionUnsecuredRevolvingCreditFaciltiyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">$1 billion unsecured revolving credit faciltiy [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading Symbol</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trading Symbol</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Common Stock, Shares, Issued, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingCostsAndExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expenses:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingCostsAndExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Costs and Expenses [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OfficeBuildingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Office Lease [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OfficeBuildingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Office Building [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_TimothyArgoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Timothy Argo [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_TimothyArgoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Timothy Argo [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_TimothyArgoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Timothy Argo.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="stpr_MD_lbl" xlink:role="http://www.xbrl.org/2003/role/label">MARYLAND</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="stpr_MD_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maryland</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnitsIssuedDuringPeriodValueNewIssuesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnitsIssuedDuringPeriodValueNewIssuesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Units Issued During Period Value New Issues Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnitsIssuedDuringPeriodValueNewIssuesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Units Issued during period value new issues net.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ContributionsFromNonControllingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Contributions from non controlling interest.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ContributionsFromNonControllingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contributions From Non Controlling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ContributionsFromNonControllingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contributions from noncontrolling interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidated Entities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Entities [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments in Unconsolidated Affiliates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investments [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfSecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Repayments of Secured Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfSecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Secured Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestInJointVentures_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncontrolling interests - consolidated real estate entities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestInJointVentures_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest in Joint Ventures</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestInJointVentures_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Noncontrolling interests - consolidated real estate entities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomeLossFromContinuingOperationsBeforeEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income from continuing operations before real estate joint venture activity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomeLossFromContinuingOperationsBeforeEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Loss From Continuing Operations Before Equity Method Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomeLossFromContinuingOperationsBeforeEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Income (Loss) from Continuing Operations before Equity Method Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Long-Term Debt Instruments [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">2027</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year Three</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Right-of-use Leases, Future Minimum Payments, Due in Three Years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Units, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Units, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AOCI Attributable to Parent [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated Other Comprehensive Loss [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Unsecured debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured notes payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Unsecured Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Land_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Land</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Land_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Land</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Land_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Land, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, City or Town</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, City or Town</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DevelopmentPropertiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Development Properties [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DevelopmentPropertiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Development Properties [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DevelopmentPropertiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Development Properties [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Weighted Average Discount Rate, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease weighted average discount rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Borrowings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_WeightedAverageNumberOfUnitsOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Weighted average common units - basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_WeightedAverageNumberOfUnitsOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average common units - basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_WeightedAverageNumberOfUnitsOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Units Outstanding Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_WeightedAverageNumberOfUnitsOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Weighted average number of units outstanding basic.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DividendsAndDistributionsDeclaredAndAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Dividends and distributions declared and accrued.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DividendsAndDistributionsDeclaredAndAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends and Distributions Declared And Accrued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DividendsAndDistributionsDeclaredAndAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends and distributions declared and accrued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsCommonStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Dividends paid on common shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsCommonStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Dividends paid on common shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Ordinary Dividends, Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendRatePerDollarAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock, Dividend Rate, Per-Dollar-Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendRatePerDollarAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Dividend Rate, Per-Dollar-Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EffectOnRetainedEarningsAccumulatedDeficitDueToFairValueOptionAndMeasurement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeemable stock fair market value adjustment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EffectOnRetainedEarningsAccumulatedDeficitDueToFairValueOptionAndMeasurement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effect On Retained Earnings Accumulated Deficit Due To Fair Value Option And Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EffectOnRetainedEarningsAccumulatedDeficitDueToFairValueOptionAndMeasurement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value option and measurement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EffectOnRetainedEarningsAccumulatedDeficitDueToFairValueOptionAndMeasurement_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Redeemable stock fair market value adjustment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Event [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional Paid-in Capital [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid-in Capital [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LegalMattersAndContingenciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LegalMattersAndContingenciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Legal Matters and Contingencies [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerUnitBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings per common unit - basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerUnitBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings per Unit Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerUnitBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Earnings per unit basic.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketableSecuritiesPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Marketable Securities, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketableSecuritiesPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Marketable Equity Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue from Contract with Customer, Including Assessed Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue from Contract with Customer, Including Assessed Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NotesToFinancialStatementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes To Financial Statements [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NotesToFinancialStatementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Notes to Financial Statements [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Debt instrument, Maturity date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract Maturity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Maturity Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DistributionOnCommonUnitsDeclaredAndAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Distribution on common units declared and accrued.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DistributionOnCommonUnitsDeclaredAndAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Distribution on Common Units Declared And Accrued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DistributionOnCommonUnitsDeclaredAndAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distribution on common units declared and accrued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeContractTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Contract</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeContractTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Contract [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommercialRealEstateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commercial Real Estate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommercialRealEstateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commercial Real Estate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MelanieCarpenterMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Melanie Carpenter [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MelanieCarpenterMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Melanie Carpenter [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MelanieCarpenterMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Melanie Carpenter.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Secured notes payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Secured Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Secured Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentsJointVentures_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate Investments, Joint Ventures</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentsJointVentures_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Investments, Joint Ventures</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_StockholdersEquityIncludingNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_StockholdersEquityIncludingNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_StockholdersEquityIncludingNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stockholders Equity Including Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_StockholdersEquityIncludingNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stockholders' Equity Including Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OperatingIncomeBeforeDepreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Operating Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OperatingIncomeBeforeDepreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Income Before Depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OperatingIncomeBeforeDepreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents total operating revenues less property operating expenses, excluding depreciation.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioUnspecifiedDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Scenario</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioUnspecifiedDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scenario [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CommonStockSettlementUnderAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock settlement under agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CommonStockSettlementUnderAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock settlement under agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CommonStockSettlementUnderAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Settlement Under Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnitsRepurchasedAndRetiredDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Units Repurchased And Retired During Period Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnitsRepurchasedAndRetiredDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Units Repurchased and Retired During Period, Value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnitsRepurchasedAndRetiredDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Exercise of unit options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnitsRepurchasedAndRetiredDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Units repurchased and retired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Loss (gain) on sale of depreciable real estate assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PostMassachusettsAvenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Post Massachusetts Avenue [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PostMassachusettsAvenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Post Massachusetts Avenue [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PostMassachusettsAvenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Post Massachusetts Avenue [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Preferred Stock, Shares Outstanding, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Preferred Stock, Shares Outstanding, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited Partners' Capital Account, Units Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Partners' Capital Account, Units Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerUnitDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings per common unit - diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerUnitDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings per Unit Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerUnitDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Earnings per unit diluted.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Tax Identification Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Tax Identification Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CumulativePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cumulative Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CumulativePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cumulative Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating Lease, Right-of-Use Asset, Statement of Financial Position</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ExpectedCostsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ExpectedCostsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Expected Costs [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ExpectedCostsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Expected Costs [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MidAmericaApartmentCommunitiesIncShareholdersEquityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mid America Apartment Communities Inc. Shareholders Equity [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MidAmericaApartmentCommunitiesIncShareholdersEquityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Mid America Apartment Communities Inc Shareholders Equity [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MidAmericaApartmentCommunitiesIncShareholdersEquityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Mid-America Apartment Communities, Inc. Shareholders' Equity.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument, Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedAndNonrelatedPartyStatusAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Party Status [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommercialPaper_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable rate commercial paper program</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommercialPaper_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commercial Paper</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquityForwardSaleAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Forward Sale Agreements [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquityForwardSaleAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity forward sale agreements.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquityForwardSaleAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Forward Sale Agreements [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentRiskAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentRiskAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GainLossFromUnconsolidatedLimitedPartnershipsNetOfDistributionsReceived_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">(Gain) loss on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GainLossFromUnconsolidatedLimitedPartnershipsNetOfDistributionsReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain Loss From Unconsolidated Limited Partnerships Net of Distributions Received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GainLossFromUnconsolidatedLimitedPartnershipsNetOfDistributionsReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Gain loss from unconsolidated limited partnerships net of distributions received.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Geographical</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Consolidated assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalAccountContributions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contribution from noncontrolling interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalAccountContributions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partners' Capital Account, Contributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureMAALPCapitalSummaryOfChangesInTotalCapitalAndItsComponentsParentheticalDetailsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disclosure M A A L P Capital Summary Of Changes In Total Capital And Its Components Parenthetical Details [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureMAALPCapitalSummaryOfChangesInTotalCapitalAndItsComponentsParentheticalDetailsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure M A A L P Capital Summary Of Changes In Total Capital And Its Components Parenthetical Details [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NoncontrollingInterestsConsolidatedRealEstateEntitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncontrolling Interests - Consolidated Real Estate Entities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NoncontrollingInterestsConsolidatedRealEstateEntitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interests Consolidated Real Estate Entities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NoncontrollingInterestsConsolidatedRealEstateEntitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Noncontrolling Interests Consolidated Real Estate Entities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Investment Income, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_BuildingsImprovementsAndOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Buildings and improvements and other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_BuildingsImprovementsAndOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Buildings Improvements And Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_BuildingsImprovementsAndOther_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing, equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases. Also includes amount of investment in certain other real estate investments not specifically identified elsewhere in the existing taxonomy.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LeaseExpirationYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease expiration year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LeaseExpirationYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease Expiration Year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LeaseExpirationYear_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Lease expiration year.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating Lease, Right-of-Use Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Right-of-Use Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerCapitalComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Partner Capital Components</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerCapitalComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partner Capital Components [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ScheduleOfRealEstateAssetAcquisitionsAndDispositionsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Real Estate Asset Acquisitions and Dispositions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ScheduleOfRealEstateAssetAcquisitionsAndDispositionsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Real Estate Asset Acquisitions And Dispositions Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ScheduleOfRealEstateAssetAcquisitionsAndDispositionsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of real estate asset acquisitions and dispositions.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Debt issuance costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Issuance Costs, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Issuance Costs, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOrSaleOfEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net proceeds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOrSaleOfEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance or Sale of Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOrSaleOfEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Proceeds from Issuance or Sale of Equity, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party, Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less: Accumulated depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Investment Property, Accumulated Depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValueOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Value, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValueOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValueOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock, value, outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Supplemental disclosure of cash flow information:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Supplemental Cash Flow Information [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total operating revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rental and other property revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from Stock Options Exercised, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Stock Options Exercised</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Operating Lease, Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Right-of-use Lease, Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_A1BillionUnsecuredRevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">$1 Billion Unsecured Revolving Credit Faciltiy [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_A1BillionUnsecuredRevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">A1 Billion Unsecured Revolving Credit Facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_A1BillionUnsecuredRevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">$1 billion unsecured revolving credit facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioForecastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Scenario Forecast [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioForecastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Forecast [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonUnitholdersDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net income available for MAALP common unitholders, adjusted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonUnitholdersDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income available for MAALP common unitholders, adjusted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonUnitholdersDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income available for MAALP common unitholders, adjusted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonUnitholdersDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjusted Income Loss from Continuing Operations Available for Common Unitholders Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonUnitholdersDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Adjusted income loss from continuing operations available for common unitholders diluted.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue Recognition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Component</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Component [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementBusinessSegmentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementBusinessSegmentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segments [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Income from continuing operations attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PaymentsToAcquireRealEstateAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Purchases of real estate and other assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PaymentsToAcquireRealEstateAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments To Acquire Real Estate And Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PaymentsToAcquireRealEstateAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures, and other related assets such as intangibles (in-place-leases) on it and so forth; includes real estate and other assets intended to generate income for the owner; excludes real estate acquired for use by the owner.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LandMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Land</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LandMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Land [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ShareholdersEquityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Changes in Total Equity and its Components</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ShareholdersEquityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shareholders Equity Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ShareholdersEquityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Shareholders' Equity [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyEstimateOfPossibleLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingency, Estimate of Possible Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyEstimateOfPossibleLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss contingency estimate of possible loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingIncomeExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Non-operating (Income) Expense [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingIncomeExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Nonoperating Income (Expense) [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to reconcile net income to net cash provided by operating activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Measurement Frequency</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Frequency [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfRealEstateProperties_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Number of owned or owned interests of apartment communities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfRealEstateProperties_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of Real Estate Properties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfRealEstateProperties_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Real Estate Properties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestInOperatingPartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest in Operating Partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestInOperatingPartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncontrolling interests - Operating Partnership units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ExcludingConstructionInProgressMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Excluding Construction in Progress [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ExcludingConstructionInProgressMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Excluding Construction in Progress</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ExcludingConstructionInProgressMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Excluding Construction in Progress [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetLossOrIncomePerUnitDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Loss Or Income Per Unit Disclosure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetLossOrIncomePerUnitDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Loss Or Income Per Unit Disclosure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetLossOrIncomePerUnitDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Net Loss or Income Per Unit Disclosure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Partner Type of Partners' Capital Account, Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partner Type of Partners' Capital Account, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in fair value of interest rate derivatives included in AOCI and expected to be reclassified in the next 12 months</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument, Basis spread on variable rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Basis Spread on Variable Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Current Reporting Status</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Current Reporting Status</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in other financing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from (Payments for) Other Financing Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtInformationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Information</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtInformationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Information [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtInformationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt Information [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInSeptemberTwoThousandFiftyOneSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Maturing in September Two Thousand Fifty One Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInSeptemberTwoThousandFiftyOneSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturing in September Two Thousand Fifty One Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInSeptemberTwoThousandFiftyOneSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturing in September 2051, Six Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization and Summary of Significant Accounting Policies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NumberOfApartmentCommunities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of Apartment Communities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NumberOfApartmentCommunities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Apartment Communities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NumberOfApartmentCommunities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of apartment communities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from issuances of common shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares issued in exchange for common units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Conversion of Units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate, Type of Property</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate, Type of Property [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Shares repurchased and retired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Repurchased and Retired During Period, Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInSeptemberTwoThousandAndTwentySixSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Maturing in September Two Thousand and Twenty Six Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInSeptemberTwoThousandAndTwentySixSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturing in September Two Thousand and Twenty Six Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInSeptemberTwoThousandAndTwentySixSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturing in September 2026, Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_TampaFLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tampa, FL.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_TampaFLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tampa F L [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_TampaFLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tampa F L</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockLiquidationPreferenceValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock, Liquidation Preference, Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockLiquidationPreferenceValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Liquidation Preference, Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current Fiscal Year End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Fiscal Year End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock compensation expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Noncash Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Share-based Payment Arrangement, Noncash Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MultifamilyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Multifamily [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Income tax expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Expense (Benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income Tax Expense (Benefit), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income tax (expense) benefit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Issuance Costs, Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Issuance Costs, Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LimitedPartnershipUnitsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited Partnership Units [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LimitedPartnershipUnitsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Partnership Units [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LimitedPartnershipUnitsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Limited Partnership Units [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Realized losses associated with terminated interest rate swaps that were designated as cash flow hedging instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NonSameStoreAndOtherMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-Same Store and Other [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NonSameStoreAndOtherMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Non Same Store And Other [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NonSameStoreAndOtherMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Non Same Store and Other [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeasesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeasesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Leases [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NotesPayableExcludingInterestRateSwapsAndCapAgreements_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes Payable Excluding Interest Rate Swaps and Cap Agreements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NotesPayableExcludingInterestRateSwapsAndCapAgreements_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable Excluding Interest Rate Swaps And Cap Agreements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NotesPayableExcludingInterestRateSwapsAndCapAgreements_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Notes Payable Excluding Interest Rate Swaps and Cap Agreements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalAccountDistributions_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distribution to noncontrolling interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalAccountDistributions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distribution to noncontrolling interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalAccountDistributions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partners' Capital Account, Distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalAccountDistributions_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Partners' Capital Account, Distributions, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CostsIncurredToDateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Costs Incurred To Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CostsIncurredToDateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Costs Incurred To Date [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CostsIncurredToDateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Costs Incurred to Date [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_FixedRateDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fixed Rate Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_FixedRateDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fixed Rate Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_FixedRateDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fixed Rate Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomefromContinuingOperationsAttributabletoNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income from continuing operations attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomefromContinuingOperationsAttributabletoNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incomefrom Continuing Operations Attributableto Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomefromContinuingOperationsAttributabletoNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Income from Continuing Operations Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomefromContinuingOperationsAttributabletoNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Income from continuing operations attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtIssuanceCostsDiscountsAndPremiumsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Issuance Costs, Discounts, and Premiums [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtIssuanceCostsDiscountsAndPremiumsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Issuance Costs, Discounts, and Premiums [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtIssuanceCostsDiscountsAndPremiumsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt issuance costs, discounts, and premiums.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate201602Member_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Accounting Standards Update 2016-02 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate201602Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update 2016-02 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income taxes paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Taxes Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NoncontrollingInterestOperatingPartnershipMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncontrolling Interests - Operating Partnership [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NoncontrollingInterestOperatingPartnershipMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest Operating Partnership [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NoncontrollingInterestOperatingPartnershipMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Noncontrolling Interest Operating Partnership.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other comprehensive income:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Net of Tax [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reconciliation of cash, cash equivalents and restricted cash at period end:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_BasicEarningsPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income available for MAALP common unitholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_BasicEarningsPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Basic Earnings Per Unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_BasicEarningsPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Basic earnings per unit.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstatePropertiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate Properties [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstatePropertiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Properties [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_Rule10B51TradingPlanOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Rule 10B51 Trading Plan One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_Rule10B51TradingPlanOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Rule 10B51 Trading Plan One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_Rule10B51TradingPlanOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rule10B51 Trading Plan One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Debt Instrument, Face Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument, Face Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Face Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Variable Rate Commercial Paper Program</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_StockIssuedInExchangeForRedeemableStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares issued in exchange for redeemable stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_StockIssuedInExchangeForRedeemableStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stock Issued in Exchange for Redeemable Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_StockIssuedInExchangeForRedeemableStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued In Exchange For Redeemable Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other non-operating income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other non-operating income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Nonoperating Income (Expense)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Nonoperating Income (Expense), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Other non-operating income (expense)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less: Comprehensive income attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term Debt, Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Depreciation and amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation and amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation, Depletion and Amortization, Nonproduction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Depreciation, Depletion and Amortization, Nonproduction, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GulfShoresALMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gulf Shores</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GulfShoresALMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gulf Shores A l [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GulfShoresALMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Gulf Shores A l.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Instruments Gain Loss By Hedging Relationship By Income Statement Location By Derivative Instrument Risk [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments, Gain (Loss) [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shareholders' Equity of MAA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetIncomeAttributabletoParent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income Attributableto Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetIncomeAttributabletoParent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Net Income Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetIncomeAttributabletoParent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetIncomeAttributabletoParent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net income attributable to MAA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LegalEntityTypeOfCounterpartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Legal Entity Type of Counterparty [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Paid, Excluding Capitalized Interest, Operating Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Additional Paid in Capital, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Additional Paid in Capital, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Additional Paid in Capital, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid in Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional paid-in capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General Partners' Capital Account, Units Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General Partners' Capital Account, Units Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Secured Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Secured Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Disposition of Property Plant Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Gain (Loss) on Disposition of Property Plant Equipment, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Gain on sale of depreciable real estate assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Loss (gain) on sale of depreciable real estate assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">(Loss) gain on sale of depreciable real estate assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit facility, maximum Borrowing capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Maximum Borrowing Capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LessorOperatingLeaseTermOfContract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease, term of contract</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LessorOperatingLeaseTermOfContract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessor, Operating Lease, Term of Contract</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Right-of-Use Lease Obligations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss Contingencies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingencies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating Partnership capital:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Total Capital [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_LitigationCaseAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Litigation Case</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_LitigationCaseAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Litigation Case [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsCommonStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Dividends on common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends, Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Dividends, Common Stock, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Policies [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segments [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentLossReclassifiedFromAociIntoIncomeEffectivePortionStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instrument, Loss Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalNotesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partners' Capital Notes [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementScenarioAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Scenario</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementScenarioAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scenario [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnitsIssuedInExchangeForRedeemableStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Units issued in exchange for redeemable stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnitsIssuedInExchangeForRedeemableStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Units Issued in Exchange for Redeemable Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnitsIssuedInExchangeForRedeemableStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Units Issued in Exchange for Redeemable Stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Option [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Option [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnsecuredSeniorNotesDueOctoberTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured Senior Notes Due October 2023 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnsecuredSeniorNotesDueOctoberTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Senior Notes Due October Two Thousand Twenty Three [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_UnsecuredSeniorNotesDueOctoberTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Unsecured senior notes due october 2023.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateEffectivePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument, Interest Rate, Effective Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateEffectivePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Interest Rate, Effective Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Dividends on noncontrolling interest units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shareholders' equity:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revolving Credit Facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revolving Credit Facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Earnings per common share - basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income available for MAA common shareholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Earnings Per Share, Basic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MergersAcquisitionsAndDispositionsDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate Acquisitions and Dispositions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MergersAcquisitionsAndDispositionsDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Mergers, Acquisitions and Dispositions Disclosures [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CapitalDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital Disclosure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CapitalDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Disclosure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CapitalDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Capital Disclosure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party, Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustmentForLimitedPartnersCapitalAtRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustment for limited partners&#8217; capital at redemption value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustmentForLimitedPartnersCapitalAtRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment For Limited Partners Capital At Redemption Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustmentForLimitedPartnersCapitalAtRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Adjustment for limited partners' capital at redemption value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LimitedPartnershipMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited Partnership [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LimitedPartnershipMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Limited partnership.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LimitedPartnershipMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Partnership [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statistical Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Embedded Derivative, Fair Value of Embedded Derivative Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Embedded Derivative, Fair Value of Embedded Derivative Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss Contingencies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingencies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash provided by operating activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Cash Provided by (Used in) Operating Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ConsolidatedStatementsOfChangesInCapitalTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">MAALP Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ConsolidatedStatementsOfChangesInCapitalTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Statements Of Changes In Capital [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ConsolidatedStatementsOfChangesInCapitalTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Consolidated Statements of Changes in Capital [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_RedeemableCapitalSharesParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeemable Capital Shares Par Or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_RedeemableCapitalSharesParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Redeemable Capital Shares Par Or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_RedeemableCapitalSharesParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Redeemable Capital Shares, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Period End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DistributionFromNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distribution from noncontrolling interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DistributionFromNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Distribution from Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DistributionFromNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Distribution from noncontrolling interest.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statistical Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateTaxesAndInsurance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real estate taxes and insurance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateTaxesAndInsurance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Taxes and Insurance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateTaxesAndInsurance_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Real Estate Taxes and Insurance, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Earnings per common share - diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income available for MAA common shareholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Earnings Per Share, Diluted, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AmortizationUnearnedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of unearned compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AmortizationUnearnedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization Unearned Compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AmortizationUnearnedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amortization of unearned compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromNotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from notes payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromNotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Notes Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromNotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Proceeds from Notes Payable, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductsAndServicesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Product and Service</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductsAndServicesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureNotesPayableAdditionalInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disclosure Notes Payable Additional Information [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureNotesPayableAdditionalInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure - Notes Payable - Additional Information [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ConsolidationAndBasisOfPresentationAndSignificantAccountingPoliciesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidation And Basis Of Presentation And Significant Accounting Policies [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ConsolidationAndBasisOfPresentationAndSignificantAccountingPoliciesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Consolidation and Basis of Presentation and Significant Accounting Policies [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomeFromContinuingOperationsAllocatedToUnvestedRestrictedShares_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Unvested restricted units (allocation of earnings)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomeFromContinuingOperationsAllocatedToUnvestedRestrictedShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income From Continuing Operations Allocated To Unvested Restricted Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomeFromContinuingOperationsAllocatedToUnvestedRestrictedShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Income from continuing operations allocated to unvested restricted shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument, Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PercentageOfOwnershipInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of ownership interests of all consolidated subsidiaries (percent)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PercentageOfOwnershipInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Ownership Interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PercentageOfOwnershipInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage Of Ownership Interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income before income tax expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsRecurringMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Measurements, Recurring [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsRecurringMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Recurring [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ProceedsFromRealEstateAssetDispositions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from real estate asset dispositions.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ProceedsFromRealEstateAssetDispositions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From Real Estate Asset Dispositions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ProceedsFromRealEstateAssetDispositions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from real estate asset dispositions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of reportable segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Reportable Segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MarketableEquitySecuritiesReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Marketable equity securities received.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MarketableEquitySecuritiesReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Marketable Equity Securities Received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MarketableEquitySecuritiesReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Marketable equity securities received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfStatesInWhichEntityOperates_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of States in which Entity Operates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfStatesInWhichEntityOperates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of States in which Entity Operates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRealEstatePropertiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Real Estate Properties [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRealEstatePropertiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Real Estate Properties [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities and equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Postal Zip Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Postal Zip Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Interactive Data Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Interactive Data Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private Placement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromRepaymentsOfCommercialPaper_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net payments of commercial paper</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromRepaymentsOfCommercialPaper_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Proceeds from (Repayments of) Commercial Paper, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromRepaymentsOfCommercialPaper_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from (Repayments of) Commercial Paper</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendRatePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock, Dividend Rate, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendRatePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Dividend Rate, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedAndNonrelatedPartyStatusDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Party Status [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnersCapitalAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited Partners' Capital Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnersCapitalAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Partners' Capital Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnersCapitalAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Limited Partners' Capital Account, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Facility [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net present value adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, Undiscounted Excess Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireInProcessResearchAndDevelopment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Development costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireInProcessResearchAndDevelopment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire in Process Research and Development</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireInProcessResearchAndDevelopment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Development costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ScheduleOfCapitalStructureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Capital Structure [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ScheduleOfCapitalStructureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Capital Structure [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ScheduleOfCapitalStructureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">[Line Items] for Schedule of Capital Structure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentPaymentTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument, Payment Terms</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentPaymentTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Payment Terms</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Incorporation, State or Country Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation, State or Country Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromPaymentsToMinorityShareholders_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Proceeds from (Payments to) Noncontrolling Interests, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromPaymentsToMinorityShareholders_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from (Payments to) Noncontrolling Interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromPaymentsToMinorityShareholders_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash proceeds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings per common share - basic:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Components</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Components [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_Distributions_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_Distributions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_Distributions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributions to MAALP Series I preferred unitholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distributions to MAALP Series I preferred unitholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Dividends to MAA Series I preferred shareholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Dividends to MAA Series I preferred shareholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock Dividends, Income Statement Impact</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PeriodPropertiesOwnedAndStabilized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Period properties owned and stabilized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PeriodPropertiesOwnedAndStabilized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Period Properties Owned And Stabilized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PeriodPropertiesOwnedAndStabilized_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Period properties owned and stabilized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NumberOfMultifamilyApartmentCommunity_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of multifamily apartment community.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NumberOfMultifamilyApartmentCommunity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Multifamily Apartment Community</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NumberOfMultifamilyApartmentCommunity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of multifamily apartment community</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInJulyTwoThousandTwentyThreeTrancheOfSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Maturing in July Two Thousand Twenty Three, Tranche of Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInJulyTwoThousandTwentyThreeTrancheOfSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturing in July Two Thousand Twenty Three, Tranche of Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInJulyTwoThousandTwentyThreeTrancheOfSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturing in July 2023, Tranche of Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distribution Made to Limited Partner, Distributions Declared, Per Unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Distribution Made to Limited Partner, Distributions Declared, Per Unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Local Phone Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Local Phone Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sale of Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DesignatedAsHedgingInstrumentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Designated as Hedging Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DesignatedAsHedgingInstrumentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Designated as Hedging Instrument [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValueOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Value, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValueOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, value, outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PartnersCapitalTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Changes in Total Capital and its Components</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PartnersCapitalTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partners Capital Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PartnersCapitalTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Partners' Capital [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfNotesPayable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Principal payments on notes payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfNotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Notes Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestCostsCapitalized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest capitalized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestCostsCapitalized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Costs Capitalized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Cash Flows [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockRedemptionPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock, Redemption Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockRedemptionPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Redemption Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonShareholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income from continuing operations available for common shareholders, adjusted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonShareholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjusted Income Loss From Continuing Operations Available For Common Shareholders Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonShareholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Adjusted income (loss) from continuing operations available for common shareholders, basic.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NoncontrollingInterestsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncontrolling Interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NoncontrollingInterestsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interests Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NoncontrollingInterestsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Noncontrolling Interests Policy Text Block.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated other comprehensive loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accumulated Other Comprehensive Income (Loss), Net of Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accumulated Other Comprehensive Income (Loss), Net of Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Accumulated other comprehensive loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment Reporting Information [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting Information [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureDebtStructureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disclosure Debt Structure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureDebtStructureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure - Debt Structure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, par value per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerOPUnitofMAALPAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per O P Unitof M A A L P [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerOPUnitofMAALPAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Earnings Per OP Unit of MAALP [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Interest Rate, Stated Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-Lived Tangible Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Tangible Asset [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maximum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maximum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OccupancyLevelForStabilizedCommunities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Occupancy level for Stabilized Communities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OccupancyLevelForStabilizedCommunities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Occupancy Level For Stabilized Communities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OccupancyLevelForStabilizedCommunities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Occupancy level for stabilized communities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Units, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Units, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_RealEstateAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Real estate assets, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_RealEstateAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Assets Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_RealEstateAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Real Estate Assets, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDilutedAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings per common share - diluted:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDilutedAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Diluted [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeemable stock, shares issued and outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerShareDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings Per Share Disclosure [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerShareDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share Disclosure [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerShareDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Earnings Per Share Disclosure [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OwnershipDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ownership</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OwnershipDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ownership [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net increase in cash, cash equivalents and restricted cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributions from real estate joint venture</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Equity Method Investment, Distribution, Return of Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeemable common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_VariableRateCommercialPaperProgramMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Rate Commercial Paper Program [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_VariableRateCommercialPaperProgramMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Rate Commercial Paper Program [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_VariableRateCommercialPaperProgramMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Variable Rate Commercial Paper Program [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued expenses and other liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accrued Liabilities, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsPreferredPartnersCapitalAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Units, Preferred Partners' Capital Accounts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsPreferredPartnersCapitalAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Units, Preferred Partners' Capital Accounts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsPreferredPartnersCapitalAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Preferred Units, Preferred Partners' Capital Accounts, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment Information</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">City Area Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flows from operating activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtInformationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Information</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtInformationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Information [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtInformationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt Information [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Information [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OrlandoFLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Orlando</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OrlandoFLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Orlando F L [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OrlandoFLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Orlando f l.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ConsolidatedStatementsOfComprehensiveIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Statements Of Comprehensive Income [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ConsolidatedStatementsOfComprehensiveIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Consolidated Statements of Comprehensive Income [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Partner Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partner Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">General and administrative expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General and administrative expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General and Administrative Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">General and Administrative Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average common shares - basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted Average Number of Shares Outstanding, Basic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NumberOfUnitsUnderDevelopmentCommunity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of units under development community</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NumberOfUnitsUnderDevelopmentCommunity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Units Under Development Community</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NumberOfUnitsUnderDevelopmentCommunity_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Property Held for Development</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Contributions to affiliates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Equity Method Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonUnitholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income available for MAALP common unitholders, adjusted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonUnitholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income available for MAALP common unitholders, adjusted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonUnitholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjusted Income Loss from Continuing Operations Available for Common Unitholders Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonUnitholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Adjusted income loss from continuing operations available for common unitholders basic.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends on noncontrolling interests, per unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Investment Income (Loss), Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstatePropertiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate Properties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstatePropertiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Properties [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flows from financing activities:</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DilutedEarningsPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income available for MAALP common unitholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DilutedEarningsPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Diluted Earnings Per Unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DilutedEarningsPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Diluted earnings per unit.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Document Fiscal Period Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Period Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total minimum lease payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Gain (loss) from real estate joint ventures</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income from real estate joint venture</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Equity Method Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income (Loss) from Equity Method Investments, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NondesignatedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Not Designated as Hedging Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NondesignatedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Not Designated as Hedging Instrument [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">2026</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Right-of-use Leases, Future Minimum Payments, Due in Two Years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Payments of Financing Costs, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Financing Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Payment of deferred financing costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LimitedPartnershipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Limited Partnerships [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LimitedPartnershipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Partnerships [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LimitedPartnershipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited Partnership [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetProceedsFromInsuranceRecoveries_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net proceeds from insurance recoveries</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetProceedsFromInsuranceRecoveries_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Proceeds From Insurance Recoveries</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetProceedsFromInsuranceRecoveries_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Net proceeds from insurance recoveries.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Letters of Credit Outstanding, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Letters of Credit Outstanding, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_RobertJDelprioreMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Robert J. DelPriore [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_RobertJDelprioreMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Robert J. DelPriore [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_RobertJDelprioreMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Robert J DelPriore.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConstructionInProgressGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Development and capital improvements in progress</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConstructionInProgressGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Construction in Progress, Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetIncomeIncludingPortionAttributabletoNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Income Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetIncomeIncludingPortionAttributabletoNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income Including Portion Attributableto Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetIncomeIncludingPortionAttributabletoNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Net Income Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash and cash equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, at Carrying Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Cash and Cash Equivalents, at Carrying Value, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Cash and Cash Equivalents, at Carrying Value, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ConsolidatedStatementsOfEquityTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">MAA Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ConsolidatedStatementsOfEquityTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Statements Of Equity [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ConsolidatedStatementsOfEquityTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Consolidated Statements of Equity [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Entity Common Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Common Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerUnitTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings per OP Unit of MAALP</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerUnitTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Unit [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerUnitTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Earnings per unit text block.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyAccrualAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingency Accrual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyAccrualAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Loss Contingency Accrual, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyAccrualAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Loss Contingency Accrual, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyAccrualAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss contingency accrual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Antidilutive Securities, Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument, Unused Borrowing Capacity, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Unused Borrowing Capacity, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other operating income expense net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Operating Income (Expense), Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Outstanding Debt</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Year Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Year Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes Payable, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ProceedsUsedToPurchaseApartmentCommunities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds used to purchase apartment communities.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_BrownLitigationCaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Brown Litigation Case [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_BrownLitigationCaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Brown Litigation Case [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_BrownLitigationCaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Brown Litigation Case [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sale of Stock</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GainLossOnSaleOfNonDepreciableRealEstateAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain Loss On Sale Of Non Depreciable Real Estate Assets</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GainLossOnSaleOfNonDepreciableRealEstateAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gain on sale of non-depreciable real estate assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GainLossOnSaleOfNonDepreciableRealEstateAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gain on sale of non-depreciable real estate assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Legal Entity of Counterparty, Type [Axis]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AtTheMarketOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">At The Market Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AtTheMarketOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">At the market offering.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Dividends paid on preferred shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Dividends paid on preferred shares</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ScheduleOfEarningsPerUnitTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Diluted Earnings per Common Unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ScheduleOfEarningsPerUnitTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Earnings Per Unit [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ScheduleOfEarningsPerUnitTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of earnings per unit of an entity.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Outstanding Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Notes Payable, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsMinorityInterest_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distributions to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsMinorityInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Ordinary Dividends, Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInDecemberTwoThousandTwentyTwoTrancheOfSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Maturing in December Two Thousand Twenty Two, Tranche of Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInDecemberTwoThousandTwentyTwoTrancheOfSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturing in December Two Thousand Twenty Two, Tranche of Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInDecemberTwoThousandTwentyTwoTrancheOfSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturing in December 2022, Tranche of Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HedgingDesignationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Hedging Designation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HedgingDesignationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Hedging Designation [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LegalEntityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Legal Entity [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_FloatingRateDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Floating Rate Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_FloatingRateDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Floating Rate Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_FloatingRateDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Floating Rate Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercise of stock options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Stock Options Exercised</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Emerging Growth Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Emerging Growth Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amendment Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConversionOfStockAmountConverted1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Conversion of OP Units to shares of common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConversionOfStockAmountConverted1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Conversion of Stock, Amount Converted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonShareholdersDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income available for MAA common shareholders, adjusted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonShareholdersDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjusted Income Loss From Continuing Operations Available For Common Shareholders Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonShareholdersDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Adjusted income (loss) from continuing operations available for common shareholders, diluted.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfAdoptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounting Standards Update</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfAdoptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MAAEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">M A A Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MAAEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">MAA Equity.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeGainLossOnDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Instruments, Gain Recognized in Income, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeGainLossOnDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gain on embedded derivative in preferred shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeGainLossOnDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Gain (Loss) on Derivative, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeGainLossOnDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative, Gain (Loss) on Derivative, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Rate [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity File Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Act File Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partners' Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Partners' Capital, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInNovemberTwoThousandTwentyFourTrancheOfSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Maturing in November Two Thousand Twenty Four, Tranche of Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInNovemberTwoThousandTwentyFourTrancheOfSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturing in November Two Thousand Twenty Four, Tranche of Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInNovemberTwoThousandTwentyFourTrancheOfSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturing in December 2024, Tranche of Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquitySaleForwardPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Forward price per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquitySaleForwardPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Sale, Forward Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquitySaleForwardPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity sale, forward price per share.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public Income Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Public Income Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Cash, cash equivalents and restricted cash, beginning of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash, cash equivalents and restricted cash, end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total cash, cash equivalents and restricted cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LandAvailableForDevelopment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Undeveloped land</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LandAvailableForDevelopment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Land Available for Development</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited Partner [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Partner [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Assets, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_RepaymentOfSeniorNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Repayment of Senior Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_RepaymentOfSeniorNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayment of Senior Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_RepaymentOfSeniorNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Retirement of tranche of Senior Unsecured Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_RepaymentOfSeniorNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Retirement of Senior Unsecured Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerCommonShareOfMAAAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Common Share Of M A A [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EarningsPerCommonShareOfMAAAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Earnings per common share of MAA.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NumberOfSharesRemainingForIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Shares Remaining For Issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NumberOfSharesRemainingForIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of shares remaining for issuance.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NumberOfSharesRemainingForIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remaining common stock to be issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-Term Debt, Maturity, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Interest Entity Primary Beneficiary [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Interest Entity, Primary Beneficiary [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccountUnitsIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General partners capital account units issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccountUnitsIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General Partners' Capital Account, Units Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Small Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Small Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Shell Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Shell Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock shares sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock, Number of Shares Issued in Transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock shares sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetailMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Retail</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetailMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retail [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerCapitalComponentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Partner Capital Components</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerCapitalComponentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partner Capital Components [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromDebtNetOfIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Debt, Net of Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromDebtNetOfIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from Debt, Net of Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAllocatedToLimitedPartners_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Allocated to Limited Partners</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAllocatedToLimitedPartners_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings per Common Share of MAA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Segment Information</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenues:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommercialPaperMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commercial Paper Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommercialPaperMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commercial Paper [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CorporateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Corporate Assets [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CorporateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Corporate Segment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Antidilutive Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Due to general partner</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Liabilities, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtRenewalPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Renewal Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtRenewalPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Renewal Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtRenewalPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt Renewal Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCash_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCash_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Restricted cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCash_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Restricted Cash, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForCapitalImprovements_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Capital improvements and other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForCapitalImprovements_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Capital Improvements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForCapitalImprovements_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Capital improvements and other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtInstrumentFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt instrument fair value disclosure.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtInstrumentFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtInstrumentFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Rate Commercial Paper Program</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AverageDailyBorrowingsOutstandingUnderTheCommercialPaperProgram_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Average daily borrowings outstanding under commercial paper program</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AverageDailyBorrowingsOutstandingUnderTheCommercialPaperProgram_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Average Daily Borrowings Outstanding Under The Commercial Paper Program</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AverageDailyBorrowingsOutstandingUnderTheCommercialPaperProgram_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Average daily borrowings outstanding under the commercial paper program.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockRedemptionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock, Redemption Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockRedemptionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Redemption Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfStockByClassTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Cumulative Redeemable Preferred Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfStockByClassTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Stock by Class [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDistributionsInExcessOfNetIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accumulated Distributions in Excess of Net Income, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDistributionsInExcessOfNetIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accumulated Distributions in Excess of Net Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDistributionsInExcessOfNetIncome_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Accumulated distributions in excess of net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Real Estate Investment Property, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Investment Property, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Statement Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement Location [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquityDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Disclosure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquityDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Disclosure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquityDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity Disclosure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfDebtDiscountPremium_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of debt issuance costs, discounts and premiums</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfDebtDiscountPremium_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization of Debt Discount (Premium)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GeneralPartnershipUnitsIssuedInExchangeForLimitedPartnershipUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General Partnership Units Issued In Exchange For Limited Partnership Units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GeneralPartnershipUnitsIssuedInExchangeForLimitedPartnershipUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">General Partnership Units Issued in Exchange for Limited Partnership Units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GeneralPartnershipUnitsIssuedInExchangeForLimitedPartnershipUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General partner units issued in exchange for limited partner units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureFinancialInstrumentsAndDerivativesEffectOfDerivativeInstrumentsOnConsolidatedStatementOfOperationsDetailsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure Financial Instruments And Derivatives Effect Of Derivative Instruments On Consolidated Statement Of Operations Details Abstract</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureFinancialInstrumentsAndDerivativesEffectOfDerivativeInstrumentsOnConsolidatedStatementOfOperationsDetailsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Disclosure - Financial Instruments and Derivatives - Effect of Derivative Instruments on Consolidated Statement of Operations (Details) [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureFinancialInstrumentsAndDerivativesEffectOfDerivativeInstrumentsOnConsolidatedStatementOfOperationsDetailsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disclosure Financial Instruments And Derivatives Effect Of Derivative Instruments On Consolidated Statement Of Operations Details [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term Debt, Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Thereafter</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, Payments Due After Year Four</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of lessee's undiscounted obligation for lease payment for operating lease due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AverageAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Average</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AverageAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Average [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AverageAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Average [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increase (Decrease) in Partners' Capital [Roll Forward]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Partners' Capital [Roll Forward]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_EquityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation and amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation, Depletion and Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Depreciation, Depletion and Amortization, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductOrServiceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Product and Service</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductOrServiceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetIncomeAvailableForCommonUnitholders_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Income Available for Common Unitholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetIncomeAvailableForCommonUnitholders_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income Available For Common Unitholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_NetIncomeAvailableForCommonUnitholders_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Net Income Available for Common Unitholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Title of 12(b) Security</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title of 12(b) Security</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_HEricBoltonJrMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">H.Eric Bolton Jr [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_HEricBoltonJrMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">H. Eric Bolton Jr.[Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_HEricBoltonJrMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">H Eric Bolton Jr.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated Distributions in Excess of Net Income [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accumulated Distributions in Excess of Net Income [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenues and NOI for Reportable Segment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="stpr_TX_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fort Worth, TX [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OperatingPartnershipUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Partnership Units Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OperatingPartnershipUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating Partnership Units, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeCategorizationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounting Standards Update</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PercentageofRentalRevenueandOtherIncomeFromNonleasingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of Rental Revenue and Other Income From Non-leasing Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PercentageofRentalRevenueandOtherIncomeFromNonleasingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentageof Rental Revenueand Other Income From Nonleasing Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PercentageofRentalRevenueandOtherIncomeFromNonleasingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of Rental Revenue and Other Income From Non-leasing Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureAssetsForReportableSegmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disclosure Assets For Reportable Segment [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureAssetsForReportableSegmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure - Assets for Reportable Segment [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incremental Common Shares Attributable to Dilutive Effect of Equity Forward Agreements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common shares attributable to dilutive effect of equity forward agreements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flows from investing activities:</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GeneralPartnersCapitalAccountMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General Partners' Capital Account [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GeneralPartnersCapitalAccountMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General Partners Capital Account [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_GeneralPartnersCapitalAccountMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">General Partners' Capital Account [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of Credit Facility, Amount Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Line of Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Long-term Line of Credit, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherCostAndExpenseOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property management expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherCostAndExpenseOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Cost and Expense, Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherCostAndExpenseOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Cost and Expense, Operating, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherCostAndExpenseOperating_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Property management expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Effect of dilutive securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted, Adjustment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted Average Number Diluted Shares Outstanding Adjustment, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ParentLPStockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Parent LP stockholders equity including portion attributable to noncontrolling interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ParentLPStockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Parent L P Stockholders Equity Including Portion Attributable To Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ParentLPStockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Company&#8217;s shareholders&#8217; equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-Lived Tangible Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Tangible Asset [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_SameStoreMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Same Store [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_SameStoreMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Same Store [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_SameStoreMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Same Store [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends on common stock, per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Dividends, Per Share, Declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockLiquidationPreference_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock, Liquidation Preference Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockLiquidationPreference_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Liquidation Preference Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PeriodPropertiesStabilized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Period Properties Stabilized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PeriodPropertiesStabilized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Period Properties Stabilized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PeriodPropertiesStabilized_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Period Properties Stabilized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MortgageLoansOnRealEstate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MortgageLoansOnRealEstate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MortgageLoansOnRealEstate_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MortgageLoansOnRealEstate_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reconciliation Of Operating Profit Loss From Segments To Consolidated [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstatePropertiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate Property Ownership</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstatePropertiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Property Ownership [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingActivitiesCashFlowStatement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in operating accounts and other operating activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingActivitiesCashFlowStatement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Operating Activities, Cash Flow Statement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ShareholdersEquityOfMAAAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shareholders Equity Of M A A [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_ShareholdersEquityOfMAAAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Shareholders' Equity of MAA [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtinstrumentsCarryingValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instruments Carrying Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtinstrumentsCarryingValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">DebtInstruments Carrying Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtinstrumentsCarryingValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">DebtInstruments Carrying Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInMarchTwoThousandAndThirtyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Matuing in March 2024 [member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInMarchTwoThousandAndThirtyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturing In March Two Thousand And Thirty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInMarchTwoThousandAndThirtyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Maturing In March Two Thousand And Thirty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingency [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Common Stock, Shares, Outstanding, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Common Stock, Shares, Outstanding, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_FixedRateDebtSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Fixed Rate Debt Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_FixedRateDebtSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fixed Rate Debt Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_FixedRateDebtSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fixed Rate Debt Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_FixedRateDebtSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fixed Rate Debt Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Statement Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement Location [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other comprehensive income - derivative instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OwnershipAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ownership</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OwnershipAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ownership [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureBasisOfPresentationAndPrinciplesOfConsolidationAndSignificantAccountingPoliciesAdditionalInformationDetailsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure Basis Of Presentation And Principles Of Consolidation And Significant Accounting Policies Additional Information Details Abstract</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureBasisOfPresentationAndPrinciplesOfConsolidationAndSignificantAccountingPoliciesAdditionalInformationDetailsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Disclosure - Basis of Presentation and Principles of Consolidation and Significant Accounting Policies - Additional Information (Details) [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DisclosureBasisOfPresentationAndPrinciplesOfConsolidationAndSignificantAccountingPoliciesAdditionalInformationDetailsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disclosure Basis Of Presentation And Principles Of Consolidation And Significant Accounting Policies Additional Information Details [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Real Estate Investment Property, at Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Investment Property, at Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit facility, current Borrowing capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Current Borrowing Capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in investing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Cash Provided by (Used in) Investing Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Quarterly Report</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketableSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Marketable Securities, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketableSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Marketable Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketableSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Marketable equity securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeemable Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Redeemable Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income available for MAA common shareholders</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Available to Common Stockholders, Basic</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CapitalDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital Disclosure [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CapitalDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Disclosure [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CapitalDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">[Line Items] for Capital Disclosure [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash (used in) provided by financing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Cash Provided by (Used in) Financing Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AcquisitionOfNoncontrollingInterests_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Acquisition of noncontrolling interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AcquisitionOfNoncontrollingInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Acquisition Of Noncontrolling Interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AcquisitionOfNoncontrollingInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Acquisition of noncontrolling interests.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_AcquisitionOfNoncontrollingInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquisition of noncontrolling interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Filer Category</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Filer Category</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CommonSharesIssuableUponConversionOfConvertibleStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Shares Issuable Upon Conversion Of Convertible Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CommonSharesIssuableUponConversionOfConvertibleStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Shares Issuable Upon Conversion Of Convertible Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CommonSharesIssuableUponConversionOfConvertibleStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common Shares Issuable upon Conversion of Convertible Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Supplemental disclosure of noncash investing and financing activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfRealEstate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Sale of Real Estate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfRealEstate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross proceeds from disposition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Balance Sheet Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Balance Sheet Location [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Rate [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInvestmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInvestmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Investment Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Adjustment for net losses reclassified to net income from derivative instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidated liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PercentageOfReimbursableRevenueFromLeasingOfApartmentHomes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage Of Reimbursable Revenue From Leasing Of Apartment Homes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PercentageOfReimbursableRevenueFromLeasingOfApartmentHomes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Reimbursable Revenue From Leasing Of Apartment Homes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PercentageOfReimbursableRevenueFromLeasingOfApartmentHomes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage Of Reimbursable Revenue From Leasing Of Apartment Homes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PropertyMortgageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Property mortgage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PropertyMortgageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property Mortgage Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_PropertyMortgageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property Mortgage [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MAALPMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">M A A L P [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MAALPMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">M A A L P [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MAALPMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">MAALP.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Stockholders' Equity Attributable to Parent, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Stockholders' Equity Attributable to Parent, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total MAA shareholders' equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SOFR [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidated Entities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Entities [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireResidentialRealEstate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Residential Real Estate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireResidentialRealEstate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquisition cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CharlotteNcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Charlotte, NC member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CharlotteNcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Charlotte, NC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_CharlotteNcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Charlotte, NC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increase (Decrease) in Stockholders' Equity [Roll Forward]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Stockholders' Equity [Roll Forward]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AreaOfLand_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Area of land</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AreaOfLand_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Area of Land</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value Measurements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AociAttributableToNoncontrollingInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">AOCI Attributable to Noncontrolling Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AociAttributableToNoncontrollingInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AOCI Attributable to Noncontrolling Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted average common shares - diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_FixedRatePropertyMortgagesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Fixed Rate Property Mortgages [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_FixedRatePropertyMortgagesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fixed Rate Property Mortgages [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_FixedRatePropertyMortgagesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fixed rate property mortgages.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Facility [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, price per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Issued, Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomeLossFromContinuingOperationsAllocatedToUnvestedRestrictedShares_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Income from continuing operations allocated to unvested restricted shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomeLossFromContinuingOperationsAllocatedToUnvestedRestrictedShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Loss From Continuing Operations Allocated To Unvested Restricted Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_IncomeLossFromContinuingOperationsAllocatedToUnvestedRestrictedShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Income (loss) from continuing operations allocated to unvested restricted shares.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OperatingCostsAndExpensesExcludingDepreciationAndAmortizationAndRealEstateTaxesAndInsurance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating costs and expenses excluding depreciation and amortization and real estate taxes and insurance.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OperatingCostsAndExpensesExcludingDepreciationAndAmortizationAndRealEstateTaxesAndInsurance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Costs And Expenses Excluding Depreciation And Amortization And Real Estate Taxes And Insurance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_OperatingCostsAndExpensesExcludingDepreciationAndAmortizationAndRealEstateTaxesAndInsurance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating expenses, excluding real estate taxes and insurance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Weighted Average Remaining Lease Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease weighted average remaining lease term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionPricePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Redemption Price, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionPricePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument, Redemption Price, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DistributionToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Distribution to noncontrolling interest.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DistributionToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Distribution To Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DistributionToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distribution to noncontrolling interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInNovemberTwoThousandTwentyTwoTrancheOfSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Maturing in November Two Thousand Twenty Two, Tranche of Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInNovemberTwoThousandTwentyTwoTrancheOfSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturing in November Two Thousand Twenty Two, Tranche of Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_MaturingInNovemberTwoThousandTwentyTwoTrancheOfSeniorNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturing in November 2022, Trance of Senior Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General Partners' Capital Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General Partners' Capital Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">General Partners' Capital Account, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPreferredStockCash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends, Preferred Stock, Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPreferredStockCash_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Dividends, Preferred Stock, Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Computation of Earnings Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtInstrumentInterestIssuePriceStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured Senior Notes issue price, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="maa_DebtInstrumentInterestIssuePriceStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument Interest Issue Price Stated Percentage</link:label>
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  <xsd:element id="maa_AverageDailyBorrowingsOutstandingUnderTheCommercialPaperProgram" name="AverageDailyBorrowingsOutstandingUnderTheCommercialPaperProgram" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_GulfShoresALMember" name="GulfShoresALMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_MAAEquityAbstract" name="MAAEquityAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_DebtInstrumentInterestIssuePriceStatedPercentage" name="DebtInstrumentInterestIssuePriceStatedPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="maa_TimothyArgoMember" name="TimothyArgoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_DisclosureMAALPCapitalSummaryOfChangesInTotalCapitalAndItsComponentsParentheticalDetailsAbstract" name="DisclosureMAALPCapitalSummaryOfChangesInTotalCapitalAndItsComponentsParentheticalDetailsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_ExpectedCostsMember" name="ExpectedCostsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_ScheduleOfCapitalStructureLineItems" name="ScheduleOfCapitalStructureLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_CapitalDisclosureTable" name="CapitalDisclosureTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_EquityDisclosureTable" name="EquityDisclosureTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_MaturingInDecemberTwoThousandTwentyTwoTrancheOfSeniorNotesMember" name="MaturingInDecemberTwoThousandTwentyTwoTrancheOfSeniorNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_PercentageOfRentalRevenueAndOtherIncomeFromLeasingOfApartmentHomes" name="PercentageOfRentalRevenueAndOtherIncomeFromLeasingOfApartmentHomes" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="maa_AdjustmentForLimitedPartnersCapitalAtRedemptionValue" name="AdjustmentForLimitedPartnersCapitalAtRedemptionValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_UnsecuredSeniorNotesDueJuneTwoThousandTwentyFourMember" name="UnsecuredSeniorNotesDueJuneTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_IncomefromContinuingOperationsAttributabletoNoncontrollingInterest" name="IncomefromContinuingOperationsAttributabletoNoncontrollingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_NotesPayableExcludingInterestRateSwapsAndCapAgreements" name="NotesPayableExcludingInterestRateSwapsAndCapAgreements" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_RedeemableCapitalSharesParOrStatedValuePerShare" name="RedeemableCapitalSharesParOrStatedValuePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="maa_UnitsRepurchasedAndRetiredDuringPeriodValue" name="UnitsRepurchasedAndRetiredDuringPeriodValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="maa_DebtInstrumentFairValueDisclosure" name="DebtInstrumentFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_LeaseExpirationYear" name="LeaseExpirationYear" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="maa_EarningsPerOPUnitofMAALPAbstract" name="EarningsPerOPUnitofMAALPAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_Distributions" name="Distributions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="maa_PercentageofRentalRevenueandOtherIncomeFromNonleasingActivities" name="PercentageofRentalRevenueandOtherIncomeFromNonleasingActivities" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="maa_ProceedsFromRealEstateAssetDispositions" name="ProceedsFromRealEstateAssetDispositions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="maa_OperatingIncomeBeforeDepreciation" name="OperatingIncomeBeforeDepreciation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_DueInDecemberTwoThousandAndTwentyTwoSeniorNotesMember" name="DueInDecemberTwoThousandAndTwentyTwoSeniorNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_AmortizationUnearnedCompensation" name="AmortizationUnearnedCompensation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_EarningsPerShareDisclosureTable" name="EarningsPerShareDisclosureTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_NumberOfSharesRemainingForIssuance" name="NumberOfSharesRemainingForIssuance" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="maa_MAALPMember" name="MAALPMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_StockIssuedInExchangeForRedeemableStock" name="StockIssuedInExchangeForRedeemableStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_A1BillionUnsecuredRevolvingCreditFaciltiyMember" name="A1BillionUnsecuredRevolvingCreditFaciltiyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_GeneralPartnersCapitalAccountMember" name="GeneralPartnersCapitalAccountMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_MaturingInNovemberTwoThousandTwentyTwoTrancheOfSeniorNotesMember" name="MaturingInNovemberTwoThousandTwentyTwoTrancheOfSeniorNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_ParentLPStockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" name="ParentLPStockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_AverageDomain" name="AverageDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_NumberOfApartmentCommunities" name="NumberOfApartmentCommunities" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="maa_RepaymentOfSeniorNotes" name="RepaymentOfSeniorNotes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_EquitySaleSettledSharesAmount" name="EquitySaleSettledSharesAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_ScheduleOfEarningsPerUnitTableTextBlock" name="ScheduleOfEarningsPerUnitTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="maa_CharlotteNcMember" name="CharlotteNcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_MelanieCarpenterMember" name="MelanieCarpenterMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_IncomeLossFromContinuingOperationsBeforeEquityMethodInvestments" name="IncomeLossFromContinuingOperationsBeforeEquityMethodInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_MAALPCapitalAbstract" name="MAALPCapitalAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonShareholdersDiluted" name="AdjustedIncomeLossFromContinuingOperationsAvailableForCommonShareholdersDiluted" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_IncomefromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterest" name="IncomefromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_DebtIssuanceCostsDiscountsAndPremiumsMember" name="DebtIssuanceCostsDiscountsAndPremiumsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_FloatingRateDebtMember" name="FloatingRateDebtMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_NoncontrollingInterestsConsolidatedRealEstateEntitiesMember" name="NoncontrollingInterestsConsolidatedRealEstateEntitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_ContributionsFromNonControllingInterest" name="ContributionsFromNonControllingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_DebtInformationDomain" name="DebtInformationDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_LimitedPartnershipsMember" name="LimitedPartnershipsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_UnitsIssuedDuringPeriodValueNewIssuesNet" name="UnitsIssuedDuringPeriodValueNewIssuesNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_FixedRateDebtSeniorNotesMember" name="FixedRateDebtSeniorNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_DevelopmentPropertiesMember" name="DevelopmentPropertiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_FixedRatePropertyMortgagesMember" name="FixedRatePropertyMortgagesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_EquitySaleForwardPricePerShare" name="EquitySaleForwardPricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="maa_DebtInformationAxis" name="DebtInformationAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_DisclosureDebtStructureAbstract" name="DisclosureDebtStructureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_NumberOfUnitsUnderDevelopmentCommunity" name="NumberOfUnitsUnderDevelopmentCommunity" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="maa_YearstomaturityMember" name="YearstomaturityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_CapitalDisclosureLineItems" name="CapitalDisclosureLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_GainLossOnSaleOfNonDepreciableRealEstateAssets" name="GainLossOnSaleOfNonDepreciableRealEstateAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_UnsecuredSeniorNotesDueOctoberTwoThousandTwentyThreeMember" name="UnsecuredSeniorNotesDueOctoberTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_DisclosureFinancialInstrumentsAndDerivativesEffectOfDerivativeInstrumentsOnConsolidatedStatementOfOperationsDetailsAbstract" name="DisclosureFinancialInstrumentsAndDerivativesEffectOfDerivativeInstrumentsOnConsolidatedStatementOfOperationsDetailsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_EarningsPerUnitBasic" name="EarningsPerUnitBasic" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="maa_BrownLitigationCaseMember" name="BrownLitigationCaseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_AtTheMarketOfferingMember" name="AtTheMarketOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_NoncontrollingInterestOperatingPartnershipMember" name="NoncontrollingInterestOperatingPartnershipMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_GeneralPartnershipUnitsIssuedInExchangeForLimitedPartnershipUnits" name="GeneralPartnershipUnitsIssuedInExchangeForLimitedPartnershipUnits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_MaturingInSeptemberTwoThousandAndTwentySixSeniorNotesMember" name="MaturingInSeptemberTwoThousandAndTwentySixSeniorNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_DisclosureRevenuesAndNoiForReportableSegmentAbstract" name="DisclosureRevenuesAndNoiForReportableSegmentAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_ConsolidationAndBasisOfPresentationAndSignificantAccountingPoliciesAbstract" name="ConsolidationAndBasisOfPresentationAndSignificantAccountingPoliciesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_DividendsAndDistributionsDeclaredAndAccrued" name="DividendsAndDistributionsDeclaredAndAccrued" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="maa_ScheduleOfCapitalStructureTable" name="ScheduleOfCapitalStructureTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_PartnersCapitalTableTextBlock" name="PartnersCapitalTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="maa_DisclosureBasisOfPresentationAndPrinciplesOfConsolidationAndSignificantAccountingPoliciesAdditionalInformationDetailsAbstract" name="DisclosureBasisOfPresentationAndPrinciplesOfConsolidationAndSignificantAccountingPoliciesAdditionalInformationDetailsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_UnitsIssuedInExchangeForRedeemableStock" name="UnitsIssuedInExchangeForRedeemableStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_CostsIncurredToDateMember" name="CostsIncurredToDateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_NoncontrollingInterestsPolicyTextBlock" name="NoncontrollingInterestsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="maa_FixedRateDebtMember" name="FixedRateDebtMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_SameStoreMember" name="SameStoreMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_ShareholdersEquityOfMAAAbstract" name="ShareholdersEquityOfMAAAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_EarningsPerShareDisclosureLineItems" name="EarningsPerShareDisclosureLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_VariableRateCommercialPaperProgramMember" name="VariableRateCommercialPaperProgramMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_MaturingJulyTwentyTwentyThreePropertyMortgageMember" name="MaturingJulyTwentyTwentyThreePropertyMortgageMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_OrlandoFLMember" name="OrlandoFLMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_EquityLineItems" name="EquityLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_MarketableEquitySecuritiesMember" name="MarketableEquitySecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_LimitedPartnershipUnitsMember" name="LimitedPartnershipUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_IncomeFromContinuingOperationsAllocatedToUnvestedRestrictedShares" name="IncomeFromContinuingOperationsAllocatedToUnvestedRestrictedShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_PaymentsToAcquireRealEstateAndOtherAssets" name="PaymentsToAcquireRealEstateAndOtherAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_PrepaymentPenaltiesAndWriteOffsOfUnamortizedCosts" name="PrepaymentPenaltiesAndWriteOffsOfUnamortizedCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="maa_PropertyMortgageMember" name="PropertyMortgageMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="maa_NetIncomeIncludingPortionAttributabletoNoncontrollingInterest" name="NetIncomeIncludingPortionAttributabletoNoncontrollingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_AdjustedIncomeLossFromContinuingOperationsAvailableForCommonUnitholdersBasic" name="AdjustedIncomeLossFromContinuingOperationsAvailableForCommonUnitholdersBasic" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_CommonSharesAndOperatingPartnershipUnitsOutstanding" name="CommonSharesAndOperatingPartnershipUnitsOutstanding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="maa_EarningsPerUnitDiluted" name="EarningsPerUnitDiluted" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="maa_NetIncomeAvailableForCommonUnitholders" name="NetIncomeAvailableForCommonUnitholders" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="maa_RealEstateAssetsNet" name="RealEstateAssetsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
</xsd:schema>
