<?xml version="1.0" encoding="us-ascii"?>
<!-- DFIN ActiveDisclosure(SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2021-08-09T17:08:19.3047253+00:00 -->
<!-- Version            : 5.0.1.648 -->
<!-- Package ID         : 98d4d546577c42e8a420782fde00fb09 -->
<!-- Copyright (c) 2021 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
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        <link:definition>100250 - Disclosure - LOANS AND LEASES (Tables)</link:definition>
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  <xsd:element id="pgc_FinancingReceivableCumulativeNumberOfLoansModifications" name="FinancingReceivableCumulativeNumberOfLoansModifications" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="pgc_FinancingReceivableModificationsSpecificReservesRecordedInvestment" name="FinancingReceivableModificationsSpecificReservesRecordedInvestment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="pgc_DepositsDetailsAbstract" name="DepositsDetailsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="pgc_DepositsPercentage" name="DepositsPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="pgc_PercentageOfNonBrokeredDepositsToDeposits" name="PercentageOfNonBrokeredDepositsToDeposits" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="pgc_PercentageOfNoninterestBearingDomesticDepositsToDepositsDemand" name="PercentageOfNoninterestBearingDomesticDepositsToDepositsDemand" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="pgc_PercentageOfInterestBearingDomesticDepositsToDepositsCertificatesOfDepositListingService" name="PercentageOfInterestBearingDomesticDepositsToDepositsCertificatesOfDepositListingService" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="pgc_InterestBearingForeignDepositReciprocalProgram" name="InterestBearingForeignDepositReciprocalProgram" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="pgc_OvernightDebtUnusedBorrowingUnusedCapacityAmount" name="OvernightDebtUnusedBorrowingUnusedCapacityAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="pgc_OvernightDebtUnusedBorrowingUnusedCapacityAmountFederalReserve" name="OvernightDebtUnusedBorrowingUnusedCapacityAmountFederalReserve" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="pgc_PaycheckProtectionProgramLiquidityFacilityTerm" name="PaycheckProtectionProgramLiquidityFacilityTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="pgc_PaycheckProtectionProgramLiquidityFacilityInterestRate" name="PaycheckProtectionProgramLiquidityFacilityInterestRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="pgc_PrepaidFederalHomeLoanBankAdvances" name="PrepaidFederalHomeLoanBankAdvances" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="pgc_FederalHomeLoanBankPrepaymentPenalty" name="FederalHomeLoanBankPrepaymentPenalty" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="pgc_BankingSegmentMember" name="BankingSegmentMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="pgc_PeapackPrivateMember" name="PeapackPrivateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="pgc_FairValueDiscountRate" name="FairValueDiscountRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="pgc_FairValueInputsAgeOfAppraisal" name="FairValueInputsAgeOfAppraisal" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="pgc_PropertyAMember" name="PropertyAMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="pgc_ResidentialLoansContractualAmount" name="ResidentialLoansContractualAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="pgc_ServiceChargesOnDepositsAbstract" name="ServiceChargesOnDepositsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="pgc_WealthManagementDivisionMember" name="WealthManagementDivisionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="pgc_CardholderRewardsMember" name="CardholderRewardsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="pgc_WriteOffSubordinatedDebtCosts" name="WriteOffSubordinatedDebtCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="pgc_OtherOperatingExpenses" name="OtherOperatingExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="pgc_TerminatedInterestRateSwapMember" name="TerminatedInterestRateSwapMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="pgc_DerivativeNumberOfInstrumentsTerminated" name="DerivativeNumberOfInstrumentsTerminated" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="pgc_DebtInstrumentNoncallableTerm" name="DebtInstrumentNoncallableTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="pgc_NetProceedsFromDebtUsedForContributions" name="NetProceedsFromDebtUsedForContributions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="pgc_ProceedsFromDebtRetainedByParent" name="ProceedsFromDebtRetainedByParent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="pgc_OperatingLeaseRemainingLeaseTerm" name="OperatingLeaseRemainingLeaseTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="pgc_RightOfUseAssetObtainedInExchangeForLeaseObligation" name="RightOfUseAssetObtainedInExchangeForLeaseObligation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
</xsd:schema>
