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  <xsd:element name="InterestRateSwapTwoMember" id="wcn_InterestRateSwapTwoMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
  <xsd:element name="IntermodalAndOtherMember" id="wcn_IntermodalAndOtherMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
  <xsd:element id="wcn_LiabilitiesAssumedAndNotesPayableIssuedToSellersOfBusinessesAcquired" name="LiabilitiesAssumedAndNotesPayableIssuedToSellersOfBusinessesAcquired" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="wcn_LifeOfCompanysOwnedLandfillsAndLandfillsOperatedUnderLifeOfSiteOperatingAgreementsMaxRange" name="LifeOfCompanysOwnedLandfillsAndLandfillsOperatedUnderLifeOfSiteOperatingAgreementsMaxRange" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="wcn_LifeOfCompanysOwnedLandfillsAndLandfillsOperatedUnderLifeOfSiteOperatingAgreementsMinRange" name="LifeOfCompanysOwnedLandfillsAndLandfillsOperatedUnderLifeOfSiteOperatingAgreementsMinRange" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element name="MaturityDatesDerivative" id="wcn_MaturityDatesDerivative" type="xbrli:gYearMonthItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
  <xsd:element name="NumeratorUsedInComputationOfBasicAndDilutedNetIncomePerCommonShareAbstract" id="wcn_NumeratorUsedInComputationOfBasicAndDilutedNetIncomePerCommonShareAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
  <xsd:element id="wcn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingNumber" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsRollforwardAbstract" id="wcn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsRollforwardAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
  <xsd:element name="SolidWasteCollectionAndTransportationPermitsMember" id="wcn_SolidWasteCollectionAndTransportationPermitsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
  <xsd:element name="SolidWasteCollectionMember" id="wcn_SolidWasteCollectionMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
  <xsd:element name="SolidWasteRecyclingMember" id="wcn_SolidWasteRecyclingMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
  <xsd:element name="TermLoanFacilityMember" id="wcn_TermLoanFacilityMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
  <xsd:element name="WesternMember" id="wcn_WesternMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
  <xsd:element id="wcn_SegmentReportingInformationEarningsBeforeInterestTaxesDepreciationAndAmortization" name="SegmentReportingInformationEarningsBeforeInterestTaxesDepreciationAndAmortization" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element id="wcn_NumberOfLandfillsOperatedNotOwnedUnderLifeOfSiteOperatingAgreements" name="NumberOfLandfillsOperatedNotOwnedUnderLifeOfSiteOperatingAgreements" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="wcn_NumberOfLandfillsOperatedUnderLimitedTermOperatingAgreements" name="NumberOfLandfillsOperatedUnderLimitedTermOperatingAgreements" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="wcn_AverageRemainingLandfillLifeBasedOnPermittedCapacityAndProjectedAnnualDisposalVolumes" name="AverageRemainingLandfillLifeBasedOnPermittedCapacityAndProjectedAnnualDisposalVolumes" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="wcn_NumberOfOwnedLandfillsCompanyIsSeekingToExpand" name="NumberOfOwnedLandfillsCompanyIsSeekingToExpand" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="wcn_NumberOfLandfillsOperatedUnderLifeOfSiteOperatingAgreementsThatCompanyIsSeekingToExpand" name="NumberOfLandfillsOperatedUnderLifeOfSiteOperatingAgreementsThatCompanyIsSeekingToExpand" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="wcn_ExplorationAndProductionWasteTreatmentRecoveryAndDisposalMember" name="ExplorationAndProductionWasteTreatmentRecoveryAndDisposalMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_InterestRateSwapFourMember" name="InterestRateSwapFourMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_IncreaseInRegularQuarterlyCashDividendPerShare" name="IncreaseInRegularQuarterlyCashDividendPerShare" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="wcn_RequiredLeverageRatio" name="RequiredLeverageRatio" nillable="true" type="xbrli:pureItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="false" />
  <xsd:element id="wcn_SwingLineLoansMember" name="SwingLineLoansMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="true" />
  <xsd:element id="wcn_ImpairmentsAndOtherOperatingCharges" name="ImpairmentsAndOtherOperatingCharges" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="wcn_DeferredCompensationPlanMember" name="DeferredCompensationPlanMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_NumberOfLandfillsOwnedAndOperatedByCompany" name="NumberOfLandfillsOwnedAndOperatedByCompany" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="wcn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityInterestAccretionExpense" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityInterestAccretionExpense" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element id="wcn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityContingentConsiderationRecordedAtAcquisitionDate" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityContingentConsiderationRecordedAtAcquisitionDate" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element id="wcn_ProgressiveWasteSolutionsLtd.Member" name="ProgressiveWasteSolutionsLtd.Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_NotesPayableToSellersAndOtherThirdPartiesMember" name="NotesPayableToSellersAndOtherThirdPartiesMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_SouthernMember" name="SouthernMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_CanadaMember" name="CanadaMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_BusinessCombinationProvisionalInformationInitialAccountingIncompleteNumberOfAcquisitions" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteNumberOfAcquisitions" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="wcn_CanadianPrimeRateMember" name="CanadianPrimeRateMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="true" />
  <xsd:element id="wcn_PermitsAndOtherMember" name="PermitsAndOtherMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_DailyRepurchaseOfSharesMaximum" name="DailyRepurchaseOfSharesMaximum" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="wcn_AverageDailyTradingVolumeDuringPeriod" name="AverageDailyTradingVolumeDuringPeriod" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="wcn_CanadianBankersAcceptanceLoanMember" name="CanadianBankersAcceptanceLoanMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_CanadianPrimeRateLoansAndSwingLineLoansMember" name="CanadianPrimeRateLoansAndSwingLineLoansMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="true" />
  <xsd:element id="wcn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAbstract" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsCashSettledInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsCashSettledInPeriod" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="wcn_TaxWithholdingsRelatedToNetShareSettlementsOfEquityBasedCompensationValue" name="TaxWithholdingsRelatedToNetShareSettlementsOfEquityBasedCompensationValue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="wcn_AnnualTonsOfWasteAcceptedAtLandfill" name="AnnualTonsOfWasteAcceptedAtLandfill" nillable="true" type="dtr-types:massItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="wcn_ChiquitaCanyonLlcMember" name="ChiquitaCanyonLlcMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_ForeignCurrencyTranslationAdjustmentMember" name="ForeignCurrencyTranslationAdjustmentMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_TaxWithholdingsRelatedToNetShareSettlementsOfEquityBasedCompensationShares" name="TaxWithholdingsRelatedToNetShareSettlementsOfEquityBasedCompensationShares" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="wcn_EstimateOfTotalNewFeesAndOtherNewTaxesOverLifeOfConditionalUsePermit" name="EstimateOfTotalNewFeesAndOtherNewTaxesOverLifeOfConditionalUsePermit" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="wcn_BridgeAndThoroughfareFeeMember" name="BridgeAndThoroughfareFeeMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_DeferredShareUnitsMember" name="DeferredShareUnitsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_NoncomplianceFee" name="NoncomplianceFee" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="wcn_EstimatedLifeOfRelevantCustomerRelationship" name="EstimatedLifeOfRelevantCustomerRelationship" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="wcn_CommercialMember" name="CommercialMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_ResidentialMember" name="ResidentialMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_IndustrialAndConstructionRollOffMember" name="IndustrialAndConstructionRollOffMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_TransferMember" name="TransferMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_PenaltiesMember" name="PenaltiesMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_PenaltiesAndFeesMember" name="PenaltiesAndFeesMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_FeesMember" name="FeesMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_NotesTwoThousandTwentyEightMember" name="NotesTwoThousandTwentyEightMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_ExerciseOfWarrantsShares" name="ExerciseOfWarrantsShares" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="wcn_DescriptionOfVariableRateBasis" name="DescriptionOfVariableRateBasis" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="wcn_GoodwillAcquiredNet" name="GoodwillAcquiredNet" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="wcn_NotesTwoThousandTwentyNineMember" name="NotesTwoThousandTwentyNineMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_AverageRatePerTonConsumedRelatedToFinalCappingClosureAndPostClosureLandfillsAccretionExpense" name="AverageRatePerTonConsumedRelatedToFinalCappingClosureAndPostClosureLandfillsAccretionExpense" nillable="true" type="srt-types:perUnitItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="wcn_AverageRatePerTonConsumedRelatedToLandfillDepletionAtOwnedLandfillsAndLandfillOperatedUnderLifeOfSiteAgreements" name="AverageRatePerTonConsumedRelatedToLandfillDepletionAtOwnedLandfillsAndLandfillOperatedUnderLifeOfSiteAgreements" nillable="true" type="srt-types:perUnitItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="wcn_AllowanceForDoubtfulAccountsReceivableImpactOfChangesInForeignCurrency" name="AllowanceForDoubtfulAccountsReceivableImpactOfChangesInForeignCurrency" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="wcn_FiniteLivedIntangibleAssetsAmortizationExpenseCurrentFiscalYear" name="FiniteLivedIntangibleAssetsAmortizationExpenseCurrentFiscalYear" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <xsd:element id="wcn_EmployeeSharePurchasePlanTwoThousandTwentyMember" name="EmployeeSharePurchasePlanTwoThousandTwentyMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumEmployeeSubscriptionRate" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumEmployeeSubscriptionRate" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="wcn_NotesTwoThousandThirtyMember" name="NotesTwoThousandThirtyMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wcn_FinanceLeasesInterestRate" name="FinanceLeasesInterestRate" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="wcn_ThresholdUsedForDisclosingEnvironmentalMattersInvolvingPotentialMonetarySanctions" name="ThresholdUsedForDisclosingEnvironmentalMattersInvolvingPotentialMonetarySanctions" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="wcn_PercentageOfProjectedAnnualDisposalVolumeFromLandfillsWithRemainingLivesWithinThresholdPeriod" name="PercentageOfProjectedAnnualDisposalVolumeFromLandfillsWithRemainingLivesWithinThresholdPeriod" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="wcn_ThresholdPeriodUsedForMeasurementOfProjectedAnnualDisposalVolumeFromLandfills" name="ThresholdPeriodUsedForMeasurementOfProjectedAnnualDisposalVolumeFromLandfills" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element name="RequiredLeverageRatioDuringMaterialAcquisitionPeriod" id="wcn_RequiredLeverageRatioDuringMaterialAcquisitionPeriod" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" id="wcn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LongTermFranchiseAgreementsAndContractsMember" id="wcn_LongTermFranchiseAgreementsAndContractsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentPortionOfOperatingLeaseLiabilities" id="wcn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentPortionOfOperatingLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLongTermPortionOfOperatingLeaseLiabilities" id="wcn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLongTermPortionOfOperatingLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NotesTwoThousandThirtyTwoMember" id="wcn_NotesTwoThousandThirtyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NewNotesTwoThousandThirtyTwoMember" id="wcn_NewNotesTwoThousandThirtyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LeasesDisclosureTextBlock" id="wcn_LeasesDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element id="wcn_MaximumPercentageOfDailySharesRepurchaseOfAverageDailyTradingVolume" name="MaximumPercentageOfDailySharesRepurchaseOfAverageDailyTradingVolume" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element name="SubsequentEventDividendDeclared" id="wcn_SubsequentEventDividendDeclared" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NotesTwoThousandThirtyThreeMember" id="wcn_NotesTwoThousandThirtyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour" id="wcn_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FinanceLeaseLiabilityPaymentsDueAfterYearFour" id="wcn_FinanceLeaseLiabilityPaymentsDueAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedInvestmentsNoncurrent" id="wcn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedInvestmentsNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ScheduleOfAssetRetirementObligationTable" id="wcn_ScheduleOfAssetRetirementObligationTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AssetRetirementObligationLineItems" id="wcn_AssetRetirementObligationLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareholdersEquityQuarterlyTableTextBlockElements" id="wcn_ShareholdersEquityQuarterlyTableTextBlockElements" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ShareholdersEquityAnnualTableTextBlockElements" id="wcn_ShareholdersEquityAnnualTableTextBlockElements" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NotesTwoThousandFiftyMember" id="wcn_NotesTwoThousandFiftyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NotesTwoThousandFiftyTwoMember" id="wcn_NotesTwoThousandFiftyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AccumulatedImpairmentOfIntangibleAssetsFiniteLivedExcludingGoodwill" id="wcn_AccumulatedImpairmentOfIntangibleAssetsFiniteLivedExcludingGoodwill" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AccumulatedImpairmentOfIntangibleAssetsExcludingGoodwill" id="wcn_AccumulatedImpairmentOfIntangibleAssetsExcludingGoodwill" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="MidSouthMember" id="wcn_MidSouthMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SolidWasteMember" id="wcn_SolidWasteMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NotesTwoThousandThirtyFourMember" id="wcn_NotesTwoThousandThirtyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CanadianOvernightRepoRateAverageMember" id="wcn_CanadianOvernightRepoRateAverageMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TwoThousandTwentyFourPerformanceBasedRestrictedShareUnitsPlanOneMember" id="wcn_TwoThousandTwentyFourPerformanceBasedRestrictedShareUnitsPlanOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RevolvingCreditAgreementMember" id="wcn_RevolvingCreditAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LineOfCreditFacilityUpsizeToMaximumBorrowingCapacity" id="wcn_LineOfCreditFacilityUpsizeToMaximumBorrowingCapacity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DurationAxis" id="wcn_DurationAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TimeFrameDomain" id="wcn_TimeFrameDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DurationOneMonthMember" id="wcn_DurationOneMonthMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DurationThreeMonthsMember" id="wcn_DurationThreeMonthsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RevolvingAndTermCreditAgreement2021Member" id="wcn_RevolvingAndTermCreditAgreement2021Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TermLoanAgreement2022Member" id="wcn_TermLoanAgreement2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SOFRLoansCORRaLoansAndLettersOfCreditMember" id="wcn_SOFRLoansCORRaLoansAndLettersOfCreditMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FacilitiesOtherThanRevolvingCreditAgreementMember" id="wcn_FacilitiesOtherThanRevolvingCreditAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NewNotesTwoThousandTwentyNineMember" id="wcn_NewNotesTwoThousandTwentyNineMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="O2024Q3DividendsMember" id="wcn_O2024Q3DividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ProceedsFromSaleOfInvestmentInNoncontrollingInterests" id="wcn_ProceedsFromSaleOfInvestmentInNoncontrollingInterests" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="O2024Q4DividendsMember" id="wcn_O2024Q4DividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesSettledInPeriod" id="wcn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesSettledInPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="JeffersonParishLouisianaLandfillLitigationMember" id="wcn_JeffersonParishLouisianaLandfillLitigationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
