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  <xsd:element id="plbc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOther" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentSubordinatedDebentures" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentSubordinatedDebentures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentTimeDeposits" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentTimeDeposits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_BusinessCombinationRecognizedAssetAcquiredAssetIncludingGoodwill" name="BusinessCombinationRecognizedAssetAcquiredAssetIncludingGoodwill" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_BusinessCombinationRecognizedAssetAcquiredBankOwnedLifeInsurance" name="BusinessCombinationRecognizedAssetAcquiredBankOwnedLifeInsurance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_BusinessCombinationRecognizedAssetAcquiredInvestmentSecurities" name="BusinessCombinationRecognizedAssetAcquiredInvestmentSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_BusinessCombinationRecognizedAssetAcquiredLoans" name="BusinessCombinationRecognizedAssetAcquiredLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_BusinessCombinationRecognizedAssetAcquiredOtherAssetCurrentAndNoncurrent" name="BusinessCombinationRecognizedAssetAcquiredOtherAssetCurrentAndNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_BusinessCombinationRecognizedLiabilityAssumedDeposits" name="BusinessCombinationRecognizedLiabilityAssumedDeposits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_BusinessCombinationRecognizedLiabilityAssumedFHLBBorrowing" name="BusinessCombinationRecognizedLiabilityAssumedFHLBBorrowing" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_BusinessCombinationRecognizedLiabilityAssumedInterestBearingDepositsMoneyMarketAccounts" name="BusinessCombinationRecognizedLiabilityAssumedInterestBearingDepositsMoneyMarketAccounts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_BusinessCombinationRecognizedLiabilityAssumedInterestBearingDepositsSavingsAccounts" name="BusinessCombinationRecognizedLiabilityAssumedInterestBearingDepositsSavingsAccounts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_BusinessCombinationRecognizedLiabilityAssumedInterestBearingDepositsTimeAccounts" name="BusinessCombinationRecognizedLiabilityAssumedInterestBearingDepositsTimeAccounts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_BusinessCombinationRecognizedLiabilityAssumedNoninterestBearingDeposits" name="BusinessCombinationRecognizedLiabilityAssumedNoninterestBearingDeposits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_BusinessCombinationRecognizedLiabilityAssumedOtherLiabilityCurrentAndNoncurrent" name="BusinessCombinationRecognizedLiabilityAssumedOtherLiabilityCurrentAndNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_BusinessCombinationRecognizedLiabilityAssumedSubordinatedDebentures" name="BusinessCombinationRecognizedLiabilityAssumedSubordinatedDebentures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_CapitalConservationBuffer" name="CapitalConservationBuffer" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="plbc_CollateralDependentLoansLossGainFairValue" name="CollateralDependentLoansLossGainFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_Commercial1stDeedMember" name="Commercial1stDeedMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_CommercialAndAgriculturaLloanCommitmentsAsPercentageOfAggregateCommitments" name="CommercialAndAgriculturaLloanCommitmentsAsPercentageOfAggregateCommitments" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="plbc_CommercialAndResidentialPortfolioSegmentsMember" name="CommercialAndResidentialPortfolioSegmentsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_CommercialLoansMember" name="CommercialLoansMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_CommercialMortgageBackedSecuritiesIssuedByUSGovernmentAgenciesMember" name="CommercialMortgageBackedSecuritiesIssuedByUSGovernmentAgenciesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" name="CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="plbc_CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" name="CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="plbc_ConsumerLoanCommitmentsAsPercentageOfAggregateCommitments" name="ConsumerLoanCommitmentsAsPercentageOfAggregateCommitments" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="plbc_CornerstoneCommonStockMember" name="CornerstoneCommonStockMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_CornerstoneCommunityBancorpMember" name="CornerstoneCommunityBancorpMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_CornerstoneMember" name="CornerstoneMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_CropsMember" name="CropsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_DebtInstrumentCovenantMaximumDebtOutstanding" name="DebtInstrumentCovenantMaximumDebtOutstanding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_DebtInstrumentLoanFee" name="DebtInstrumentLoanFee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_DeferredLoanOriginationCosts" name="DeferredLoanOriginationCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_DeferredTaxAssetLeaseLiability" name="DeferredTaxAssetLeaseLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_DeferredTaxLiabilitiesPurchaseAccountingAdjustments" name="DeferredTaxLiabilitiesPurchaseAccountingAdjustments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_DefinedContributionPlanSalaryContinuationPeriod" name="DefinedContributionPlanSalaryContinuationPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_DepositsAndRepurchaseAgreementsMember" name="DepositsAndRepurchaseAgreementsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_DirectorCompensationAndRetirement" name="DirectorCompensationAndRetirement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_DividendIncomeOnFederalHomeLoanBankStock" name="DividendIncomeOnFederalHomeLoanBankStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_DividendsPolicyPolicyTextBlock" name="DividendsPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_DocumentAndEntityInformation" name="DocumentAndEntityInformation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_EachLeaseAgreementForPropertiesSoldAndLeasedBackMember" name="EachLeaseAgreementForPropertiesSoldAndLeasedBackMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_EarningsFromInvestmentInStatutoryTrusts" name="EarningsFromInvestmentInStatutoryTrusts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_EffectiveIncomeTaxRatePurchaseAccountingAdjustments" name="EffectiveIncomeTaxRatePurchaseAccountingAdjustments" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_EffectiveIncomeTaxRateReconciliationIncreaseDecreaseInCashSurrenderValueOfLifeInsuranceBusiness" name="EffectiveIncomeTaxRateReconciliationIncreaseDecreaseInCashSurrenderValueOfLifeInsuranceBusiness" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_EffectiveIncomeTaxRateReconciliationIncreaseDecreaseInCashSurrenderValueOfLifeInsuranceBusinessAmount" name="EffectiveIncomeTaxRateReconciliationIncreaseDecreaseInCashSurrenderValueOfLifeInsuranceBusinessAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_EffectiveIncomeTaxRateReconciliationInterestOnObligationsOfStatesAndPoliticalSubdivisions" name="EffectiveIncomeTaxRateReconciliationInterestOnObligationsOfStatesAndPoliticalSubdivisions" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_EffectiveIncomeTaxRateReconciliationInterestOnObligationsOfStatesAndPoliticalSubdivisionsAmount" name="EffectiveIncomeTaxRateReconciliationInterestOnObligationsOfStatesAndPoliticalSubdivisionsAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_EquityLinesOfCreditMember" name="EquityLinesOfCreditMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_FarmlandMember" name="FarmlandMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_FeatherRiverBancorpIncMember" name="FeatherRiverBancorpIncMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_FederalHomeLoanBankAdvancesGeneralDebtObligationsStockNeededToReachMaximumAmount" name="FederalHomeLoanBankAdvancesGeneralDebtObligationsStockNeededToReachMaximumAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="plbc_FederalReserveBankDiscountWindowMember" name="FederalReserveBankDiscountWindowMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_FederalReserveBankDiscountWindowProgramMember" name="FederalReserveBankDiscountWindowProgramMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_FederalReserveBankStockPolicyTextBlock" name="FederalReserveBankStockPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_FinancingReceivableAllowanceForCreditLossNonaccrualLoans" name="FinancingReceivableAllowanceForCreditLossNonaccrualLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_FinancingReceivableBalanceOfNonaccrualLoansByLoanCategoryTableTextBlock" name="FinancingReceivableBalanceOfNonaccrualLoansByLoanCategoryTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_FinancingReceivableCollateralDependentLoansTableTextBlock" name="FinancingReceivableCollateralDependentLoansTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefaultNumberOfLoans" name="FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefaultNumberOfLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefaultPeriodPastDue" name="FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefaultPeriodPastDue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_FinancingReceivableModifiedFinancialEffectTableTextBlock" name="FinancingReceivableModifiedFinancialEffectTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_FinancingReceivableNonaccrualWithNoAllowanceForCreditLosses" name="FinancingReceivableNonaccrualWithNoAllowanceForCreditLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_FinancingReceivableReversalOfAccruedInterestIncomeTableTextBlock" name="FinancingReceivableReversalOfAccruedInterestIncomeTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_FormerDirectorMember" name="FormerDirectorMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_FormerExecutivesOfficerMember" name="FormerExecutivesOfficerMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_FurnitureEquipmentAndLeaseholdImprovementsMember" name="FurnitureEquipmentAndLeaseholdImprovementsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_GainLossOnSaleOfOtherVehicles" name="GainLossOnSaleOfOtherVehicles" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_GreenEnergyTaxCreditsMember" name="GreenEnergyTaxCreditsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_GuaranteedLoansWithUnpaidbalance" name="GuaranteedLoansWithUnpaidbalance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_ImpairedLoansFairValue" name="ImpairedLoansFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_ImpairedLoansMeasurementInput" name="ImpairedLoansMeasurementInput" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant"/>
  <xsd:element id="plbc_ImpairmentOfCollateralDependentLoans" name="ImpairmentOfCollateralDependentLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_InterchangeRevenue" name="InterchangeRevenue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_InvestmentInBankSubsidiary" name="InvestmentInBankSubsidiary" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_InvestmentInFederalHomeLoanBankStockPolicyPolicyTextBlock" name="InvestmentInFederalHomeLoanBankStockPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_InvestmentProgramMeasurementInput" name="InvestmentProgramMeasurementInput" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_LeaseAgreementForPropertiesSoldAndLeasedBackMember" name="LeaseAgreementForPropertiesSoldAndLeasedBackMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_LenderBankOneMember" name="LenderBankOneMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_LenderBankTwoMember" name="LenderBankTwoMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_LenderBanksMember" name="LenderBanksMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_LivestockMember" name="LivestockMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_LoanAgreementAndPromissoryNoteMember" name="LoanAgreementAndPromissoryNoteMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_LoanCollectionExpenses" name="LoanCollectionExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_LoansAndLeasesReceivableRelatedPartiesEffectOfChangeInCompositionOfRelatedParties" name="LoansAndLeasesReceivableRelatedPartiesEffectOfChangeInCompositionOfRelatedParties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_LoansHeldforsalePercentGuaranteed" name="LoansHeldforsalePercentGuaranteed" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_LoansNetOfUnfundedCommitmentsMember" name="LoansNetOfUnfundedCommitmentsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_LoansOriginatedForsale" name="LoansOriginatedForsale" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_LowIncomeHousingTaxCreditFundsMember" name="LowIncomeHousingTaxCreditFundsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_MaximumLoanToValueRatio" name="MaximumLoanToValueRatio" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="plbc_MeasurementInputManagerAdjustmentsMember" name="MeasurementInputManagerAdjustmentsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_NetIncreaseInDemandInterestBearingAndSavingsdeposits" name="NetIncreaseInDemandInterestBearingAndSavingsdeposits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_NonaccrualInterestIncomeCashBasisMethodMember" name="NonaccrualInterestIncomeCashBasisMethodMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredIncludingGoodwillAcquired" name="NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredIncludingGoodwillAcquired" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_NonpurchasedCreditDeterioratedLoansPolicyTextBlock" name="NonpurchasedCreditDeterioratedLoansPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_NumberOfBranches" name="NumberOfBranches" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/>
  <xsd:element id="plbc_NumberOfBranchesAcquired" name="NumberOfBranchesAcquired" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_NumberOfInvestmentSecurities" name="NumberOfInvestmentSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/>
  <xsd:element id="plbc_NumberOfMortgageLoansInProcessOfForeclosure" name="NumberOfMortgageLoansInProcessOfForeclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/>
  <xsd:element id="plbc_NumberOfSecuritiesSoldDuringPeriod" name="NumberOfSecuritiesSoldDuringPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_NumberOfSecuritiesSoldForGainDuringThePeriod" name="NumberOfSecuritiesSoldForGainDuringThePeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_NumberOfSecuritiesSoldForLossDuringThePeriod" name="NumberOfSecuritiesSoldForLossDuringThePeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_OccupancyAndEquipment" name="OccupancyAndEquipment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_OccupancyAndEquipmentExpenseMember" name="OccupancyAndEquipmentExpenseMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_OffbalancesheetCreditLossLiabilityCreditLossExpenseReversalOnLoanPurchased" name="OffbalancesheetCreditLossLiabilityCreditLossExpenseReversalOnLoanPurchased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_OffbalancesheetCreditLossLiabilityTableTextBlock" name="OffbalancesheetCreditLossLiabilityTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_OperatingLeaseAnnualRent" name="OperatingLeaseAnnualRent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_OperatingLeaseRenewalTermAnnualRentIncreasePercentage" name="OperatingLeaseRenewalTermAnnualRentIncreasePercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="plbc_OperatingLeaseTermOfContractAnnualRentIncreasePercentage" name="OperatingLeaseTermOfContractAnnualRentIncreasePercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="plbc_OtherLoansMember" name="OtherLoansMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_OtherRealEstateFairValueDisclosure" name="OtherRealEstateFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_OtherRealEstateOwnedAndReceivablesFairValue" name="OtherRealEstateOwnedAndReceivablesFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_OtherRealEstateOwnedAndReceivablesLossGainFairValue" name="OtherRealEstateOwnedAndReceivablesLossGainFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_OtherRealEstateOwnedLossGainFairValue" name="OtherRealEstateOwnedLossGainFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_OtherRealEstateResidentialRealEstateMember" name="OtherRealEstateResidentialRealEstateMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_OtherStateTaxAuthoritiesMember" name="OtherStateTaxAuthoritiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_OutsideServiceFees" name="OutsideServiceFees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_PolicyTable" name="PolicyTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_ProceedsFromPrincipalRepaymentsOfMortgagebackedSecuritiesMbsAvailableforsale" name="ProceedsFromPrincipalRepaymentsOfMortgagebackedSecuritiesMbsAvailableforsale" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_PurchaseAgreementMember" name="PurchaseAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_PurchaseOfGreenenergyTransferableTaxCredits" name="PurchaseOfGreenenergyTransferableTaxCredits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_PurchasedCreditDeterioratedLoansPolicyTextBlock" name="PurchasedCreditDeterioratedLoansPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_PurchasedFinancialAssetsWithCreditDeteriorationTableTextBlock" name="PurchasedFinancialAssetsWithCreditDeteriorationTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_RealEstateAndVehiclesAcquiredThroughForeclosure" name="RealEstateAndVehiclesAcquiredThroughForeclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_RealEstateLoanCommitmentsAsPercentageOfAggregateCommitments" name="RealEstateLoanCommitmentsAsPercentageOfAggregateCommitments" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="plbc_ReceivablesLossGainFairValueDisclosure" name="ReceivablesLossGainFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_ReceivablesMeasurementInput" name="ReceivablesMeasurementInput" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="plbc_RedBluffCAMember" name="RedBluffCAMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_ReddingCAMember" name="ReddingCAMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_ResidentialMortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember" name="ResidentialMortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_SBAMember" name="SBAMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_SBARBSAndFSAMember" name="SBARBSAndFSAMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_SFR1stDeedMember" name="SFR1stDeedMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_SFR2ndDeedMember" name="SFR2ndDeedMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_ScheduleOfIncomeTaxesPaidTableTextBlock" name="ScheduleOfIncomeTaxesPaidTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_ScheduleOfInterestBearingDepositsTableTextBlock" name="ScheduleOfInterestBearingDepositsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_ScheduleOfMaturitiesOfTimeDepositsTableTextBlock" name="ScheduleOfMaturitiesOfTimeDepositsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_SecuritiesSoldUnderAgreementsToRepurchaseAverageDailyBalance" name="SecuritiesSoldUnderAgreementsToRepurchaseAverageDailyBalance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_SecuritiesSoldUnderAgreementsToRepurchaseMaximumMonthEndBalanceDuringPeriod" name="SecuritiesSoldUnderAgreementsToRepurchaseMaximumMonthEndBalanceDuringPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="plbc_SecuritiesSoldUnderAgreementsToRepurchaseTerm" name="SecuritiesSoldUnderAgreementsToRepurchaseTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_Sfr3rdDeedMember" name="Sfr3rdDeedMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestOutstandingAggregateIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestOutstandingAggregateIntrinsicValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestOutstandingNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestOutstandingNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="plbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestOutstandingWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestOutstandingWeightedAverageExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element id="plbc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestOutstandingWeightedAverageRemainingContractualTerm" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestOutstandingWeightedAverageRemainingContractualTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAssumedInPeriod" name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAssumedInPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_StockIssuedDuringPeriodValueStockOptionsVesting" name="StockIssuedDuringPeriodValueStockOptionsVesting" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_StockOptionPlan2013Member" name="StockOptionPlan2013Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_StockOptionPlan2022Member" name="StockOptionPlan2022Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_StockRetired" name="StockRetired" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_The2030NotesMember" name="The2030NotesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_The2035NotesMember" name="The2035NotesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_ThePropertiesMember" name="ThePropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_ThirdPartyAppraisalsMember" name="ThirdPartyAppraisalsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_TwoAdministrativeBuildingsLocatedInQuincyCaliforniaMember" name="TwoAdministrativeBuildingsLocatedInQuincyCaliforniaMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="plbc_UndisbursedCommitmentsToRelatedParties" name="UndisbursedCommitmentsToRelatedParties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="plbc_UnsecuredShortTermBorrowingAgreementAmountAvailableForBorrowing" name="UnsecuredShortTermBorrowingAgreementAmountAvailableForBorrowing" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="plbc_Year2022Member" name="Year2022Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_Year2024Member" name="Year2024Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-11-leases-maturity-analysis-of-operating-lease-liability-details" name="statement-statement-note-11-leases-maturity-analysis-of-operating-lease-liability-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-11-leases-tables" name="statement-statement-note-11-leases-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-12-commitments-and-contingencies-financial-instruments-representing-offbalancesheet-credit-risk-details" name="statement-statement-note-12-commitments-and-contingencies-financial-instruments-representing-offbalancesheet-credit-risk-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-12-commitments-and-contingencies-tables" name="statement-statement-note-12-commitments-and-contingencies-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-13-shareholders-equity-basic-and-diluted-earnings-per-share-details" name="statement-statement-note-13-shareholders-equity-basic-and-diluted-earnings-per-share-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-13-shareholders-equity-regulatory-capital-details" name="statement-statement-note-13-shareholders-equity-regulatory-capital-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-13-shareholders-equity-stock-option-activity-details" name="statement-statement-note-13-shareholders-equity-stock-option-activity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-13-shareholders-equity-stock-option-plan-cost-details" name="statement-statement-note-13-shareholders-equity-stock-option-plan-cost-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-13-shareholders-equity-tables" name="statement-statement-note-13-shareholders-equity-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-14-other-expenses-other-expenses-details" name="statement-statement-note-14-other-expenses-other-expenses-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-14-other-expenses-tables" name="statement-statement-note-14-other-expenses-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-15-income-taxes-deferred-tax-assets-liabilities-details" name="statement-statement-note-15-income-taxes-deferred-tax-assets-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-15-income-taxes-income-tax-rate-reconciliation-details" name="statement-statement-note-15-income-taxes-income-tax-rate-reconciliation-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-15-income-taxes-provision-for-income-taxes-details" name="statement-statement-note-15-income-taxes-provision-for-income-taxes-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-15-income-taxes-qualified-affordable-housing-projects-details" name="statement-statement-note-15-income-taxes-qualified-affordable-housing-projects-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-15-income-taxes-qualified-affordable-housing-projects-details-parentheticals" name="statement-statement-note-15-income-taxes-qualified-affordable-housing-projects-details-parentheticals" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-15-income-taxes-schedule-of-income-taxes-paid-details" name="statement-statement-note-15-income-taxes-schedule-of-income-taxes-paid-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-15-income-taxes-tables" name="statement-statement-note-15-income-taxes-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-16-related-party-transactions-related-party-borrowers-details" name="statement-statement-note-16-related-party-transactions-related-party-borrowers-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-16-related-party-transactions-tables" name="statement-statement-note-16-related-party-transactions-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-18-comprehensive-income-changes-in-oci-details" name="statement-statement-note-18-comprehensive-income-changes-in-oci-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-18-comprehensive-income-reclassifications-of-oci-details" name="statement-statement-note-18-comprehensive-income-reclassifications-of-oci-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-18-comprehensive-income-tables" name="statement-statement-note-18-comprehensive-income-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-19-business-combinations-acquisition-of-conerstone-community-bancorp-pro-forma-details" name="statement-statement-note-19-business-combinations-acquisition-of-conerstone-community-bancorp-pro-forma-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-19-business-combinations-acquisition-of-conerstone-community-bancorp-schedule-of-pcd-loans-details" name="statement-statement-note-19-business-combinations-acquisition-of-conerstone-community-bancorp-schedule-of-pcd-loans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-19-business-combinations-acquisition-of-conerstone-community-bancorp-schedule-of-recognized-identified-assets-acquired-and-liabilities-assumed-details" name="statement-statement-note-19-business-combinations-acquisition-of-conerstone-community-bancorp-schedule-of-recognized-identified-assets-acquired-and-liabilities-assumed-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-19-business-combinations-acquisition-of-conerstone-community-bancorp-schedule-of-recognized-identified-assets-acquired-and-liabilities-assumed-details-parentheticals" name="statement-statement-note-19-business-combinations-acquisition-of-conerstone-community-bancorp-schedule-of-recognized-identified-assets-acquired-and-liabilities-assumed-details-parentheticals" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-19-business-combinations-acquisition-of-conerstone-community-bancorp-tables" name="statement-statement-note-19-business-combinations-acquisition-of-conerstone-community-bancorp-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-2-summary-of-significant-accounting-policies-change-in-other-real-estate-details" name="statement-statement-note-2-summary-of-significant-accounting-policies-change-in-other-real-estate-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-2-summary-of-significant-accounting-policies-intangible-assets-details" name="statement-statement-note-2-summary-of-significant-accounting-policies-intangible-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-2-summary-of-significant-accounting-policies-reconciliation-of-purchase-price-to-par-value-details" name="statement-statement-note-2-summary-of-significant-accounting-policies-reconciliation-of-purchase-price-to-par-value-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-2-summary-of-significant-accounting-policies-tables" name="statement-statement-note-2-summary-of-significant-accounting-policies-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-2-summary-of-significant-accounting-policies-weighted-average-fair-value-assumptions-details" name="statement-statement-note-2-summary-of-significant-accounting-policies-weighted-average-fair-value-assumptions-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="plbc_statement-statement-note-20-parent-only-condensed-financial-statements-condensed-statements-of-cash-flows-details" name="statement-statement-note-20-parent-only-condensed-financial-statements-condensed-statements-of-cash-flows-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-20-parent-only-condensed-financial-statements-condensed-statements-of-income-and-comprehensive-income-details" name="statement-statement-note-20-parent-only-condensed-financial-statements-condensed-statements-of-income-and-comprehensive-income-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-20-parent-only-condensed-financial-statements-tables" name="statement-statement-note-20-parent-only-condensed-financial-statements-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-3-fair-value-measurements-assets-and-liabilities-measured-at-fair-value-on-a-nonrecurring-basis-details" name="statement-statement-note-3-fair-value-measurements-assets-and-liabilities-measured-at-fair-value-on-a-nonrecurring-basis-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="plbc_statement-statement-note-3-fair-value-measurements-carrying-amounts-and-estimated-fair-values-of-financial-instruments-details" name="statement-statement-note-3-fair-value-measurements-carrying-amounts-and-estimated-fair-values-of-financial-instruments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-3-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-for-financial-instruments-measured-at-fair-value-on-a-nonrecurring-basis-details" name="statement-statement-note-3-fair-value-measurements-quantitative-information-about-level-3-fair-value-measurements-for-financial-instruments-measured-at-fair-value-on-a-nonrecurring-basis-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-3-fair-value-measurements-tables" name="statement-statement-note-3-fair-value-measurements-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-4-investment-securities-amortized-cost-and-estimated-fair-value-of-investment-securities-details" name="statement-statement-note-4-investment-securities-amortized-cost-and-estimated-fair-value-of-investment-securities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-4-investment-securities-investment-securities-by-contractual-maturity-details" name="statement-statement-note-4-investment-securities-investment-securities-by-contractual-maturity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-4-investment-securities-investment-securities-with-unrealized-losses-details" name="statement-statement-note-4-investment-securities-investment-securities-with-unrealized-losses-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-4-investment-securities-tables" name="statement-statement-note-4-investment-securities-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-5-loans-and-the-allowance-for-credit-losses-aging-analysis-of-the-loan-portfolio-details" name="statement-statement-note-5-loans-and-the-allowance-for-credit-losses-aging-analysis-of-the-loan-portfolio-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-5-loans-and-the-allowance-for-credit-losses-allocation-of-the-allowance-for-credit-losses-details" name="statement-statement-note-5-loans-and-the-allowance-for-credit-losses-allocation-of-the-allowance-for-credit-losses-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-5-loans-and-the-allowance-for-credit-losses-balance-of-nonaccrual-loans-by-loan-category-details" name="statement-statement-note-5-loans-and-the-allowance-for-credit-losses-balance-of-nonaccrual-loans-by-loan-category-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-5-loans-and-the-allowance-for-credit-losses-collateral-dependent-loans-details" name="statement-statement-note-5-loans-and-the-allowance-for-credit-losses-collateral-dependent-loans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-5-loans-and-the-allowance-for-credit-losses-financial-effect-of-loan-modifications-details" name="statement-statement-note-5-loans-and-the-allowance-for-credit-losses-financial-effect-of-loan-modifications-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-5-loans-and-the-allowance-for-credit-losses-loan-modifications-details" name="statement-statement-note-5-loans-and-the-allowance-for-credit-losses-loan-modifications-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-5-loans-and-the-allowance-for-credit-losses-loan-portfolio-allocated-by-internal-risk-ratings-details" name="statement-statement-note-5-loans-and-the-allowance-for-credit-losses-loan-portfolio-allocated-by-internal-risk-ratings-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-5-loans-and-the-allowance-for-credit-losses-outstanding-loans-details" name="statement-statement-note-5-loans-and-the-allowance-for-credit-losses-outstanding-loans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-5-loans-and-the-allowance-for-credit-losses-reserve-for-unfunded-commitments-details" name="statement-statement-note-5-loans-and-the-allowance-for-credit-losses-reserve-for-unfunded-commitments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-5-loans-and-the-allowance-for-credit-losses-reversal-of-accrued-interest-details" name="statement-statement-note-5-loans-and-the-allowance-for-credit-losses-reversal-of-accrued-interest-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-5-loans-and-the-allowance-for-credit-losses-tables" name="statement-statement-note-5-loans-and-the-allowance-for-credit-losses-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-6-premises-and-equipment-premises-and-equipment-details" name="statement-statement-note-6-premises-and-equipment-premises-and-equipment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-6-premises-and-equipment-tables" name="statement-statement-note-6-premises-and-equipment-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-7-deposits-interestbearing-deposits-details" name="statement-statement-note-7-deposits-interestbearing-deposits-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-7-deposits-maturities-of-time-deposits-details" name="statement-statement-note-7-deposits-maturities-of-time-deposits-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-7-deposits-tables" name="statement-statement-note-7-deposits-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-8-securities-sold-under-agreements-to-repurchase-securities-sold-under-agreements-to-repurchase-details" name="statement-statement-note-8-securities-sold-under-agreements-to-repurchase-securities-sold-under-agreements-to-repurchase-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-note-8-securities-sold-under-agreements-to-repurchase-tables" name="statement-statement-note-8-securities-sold-under-agreements-to-repurchase-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="plbc_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
