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  <xsd:element name="FinancingReceivables30To89DaysPastDueMember" id="cznc_FinancingReceivables30To89DaysPastDueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ForeclosedRealEstateFairValue" id="cznc_ForeclosedRealEstateFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="ImpairedLoansFairValue" id="cznc_ImpairedLoansFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="IndependentDirectorsStockIncentivePlanMember" id="cznc_IndependentDirectorsStockIncentivePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InterestAndFeeIncomeLoansTaxable" id="cznc_InterestAndFeeIncomeLoansTaxable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="InterestExpenseSubordinatedDebt" id="cznc_InterestExpenseSubordinatedDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="InvestmentSecuritiesMember" id="cznc_InvestmentSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ModelingPeriodRate" id="cznc_ModelingPeriodRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="MutualFund1Member" id="cznc_MutualFund1Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherAccretionAndAmortization" id="cznc_OtherAccretionAndAmortization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="OtherCommercialLoansMember" id="cznc_OtherCommercialLoansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherCorrespondentBanksMember" id="cznc_OtherCorrespondentBanksMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PennsylvaniaSharesTax1" id="cznc_PennsylvaniaSharesTax1" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="RedemptionOfFederalHomeLoanBankStock" id="cznc_RedemptionOfFederalHomeLoanBankStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfMortgageLoansInProcessOfForeclosureTableTextBlock" id="cznc_ScheduleOfMortgageLoansInProcessOfForeclosureTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfRealEstateAcquiredThroughForeclosureTableTextBlock" id="cznc_ScheduleOfRealEstateAcquiredThroughForeclosureTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ServicingRightsAssetsMember" id="cznc_ServicingRightsAssetsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockBasedCompensationAndOtherExpenses" id="cznc_StockBasedCompensationAndOtherExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="StockIncentivePlanMember" id="cznc_StockIncentivePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TimeDepositsMember" id="cznc_TimeDepositsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WeightedAveragePSA" id="cznc_WeightedAveragePSA" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="ComprehensiveIncomeAbstract" id="cznc_ComprehensiveIncomeAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InterestOnLoansToPoliticalSubdivisions" id="cznc_InterestOnLoansToPoliticalSubdivisions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AmortizationOfNetTransitionObligationPriorServiceCostAndNetActuarialLoss" id="cznc_AmortizationOfNetTransitionObligationPriorServiceCostAndNetActuarialLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="EmployeesMember" id="cznc_EmployeesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OccupancyExpenseMember" id="cznc_OccupancyExpenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NatureOfOperationsPolicyTextBlock" id="cznc_NatureOfOperationsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PurchasedLoansPolicyTextBlock" id="cznc_PurchasedLoansPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfDepreciationExpenseTableTextBlock" id="cznc_ScheduleOfDepreciationExpenseTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfRemainingMaturitiesOfTimeDepositsInExcessOf250000TableTextBlock" id="cznc_ScheduleOfRemainingMaturitiesOfTimeDepositsInExcessOf250000TableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfOffBalanceSheetRisksExpirationsTableTextBlock" id="cznc_ScheduleOfOffBalanceSheetRisksExpirationsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RegulatoryCapitalRequirementsUnderBankingRegulationsTransitionScheduleForNewRatiosTableTextBlock" id="cznc_RegulatoryCapitalRequirementsUnderBankingRegulationsTransitionScheduleForNewRatiosTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RegulatoryCapitalRequirementsPayoutRestrictionsBasedOnCapitalConservationBufferTableTextBlock" id="cznc_RegulatoryCapitalRequirementsPayoutRestrictionsBasedOnCapitalConservationBufferTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AssetsUnderManagementFairValue" id="cznc_AssetsUnderManagementFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="TrustRevenueEarnedAndCollectedMonthlyPercent" id="cznc_TrustRevenueEarnedAndCollectedMonthlyPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedInterestAndOtherLiabilities" id="cznc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedInterestAndOtherLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionProFormaNoninterestIncome" id="cznc_BusinessAcquisitionProFormaNoninterestIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ContractualMaturitiesTimeDepositsAtOrAboveFDICInsuranceLimitThreeMonthsOrLess" id="cznc_ContractualMaturitiesTimeDepositsAtOrAboveFDICInsuranceLimitThreeMonthsOrLess" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ContractualMaturitiesTimeDepositsAtOrAboveFDICInsuranceLimitThreeMonthsThroughTwelveMonths" id="cznc_ContractualMaturitiesTimeDepositsAtOrAboveFDICInsuranceLimitThreeMonthsThroughTwelveMonths" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ContractualMaturitiesTimeDepositsAtOrAboveFDICInsuranceLimitSixMonthsThrough12Months" id="cznc_ContractualMaturitiesTimeDepositsAtOrAboveFDICInsuranceLimitSixMonthsThrough12Months" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ContractualMaturitiesTimeDepositsAtOrAboveFDICInsuranceLimitAfter3Years" id="cznc_ContractualMaturitiesTimeDepositsAtOrAboveFDICInsuranceLimitAfter3Years" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="EmployeeStockOwnershipPlanESOPDiversificationFeatureAgeRequirement" id="cznc_EmployeeStockOwnershipPlanESOPDiversificationFeatureAgeRequirement" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="EmployeeStockOwnershipPlanESOPDiversificationFeaturePercentage" id="cznc_EmployeeStockOwnershipPlanESOPDiversificationFeaturePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="EmployeeStockOwnershipPlanESOPPolicyDiversificationFeatureTerm" id="cznc_EmployeeStockOwnershipPlanESOPPolicyDiversificationFeatureTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EmployeeStockOwnershipPlanESOPSharesRepurchased" id="cznc_EmployeeStockOwnershipPlanESOPSharesRepurchased" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DeferredTaxLiabilitiesDefinedBenefitPlans" id="cznc_DeferredTaxLiabilitiesDefinedBenefitPlans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="FairValueDisclosureOffbalanceSheetRisksExpirationsYearThree" id="cznc_FairValueDisclosureOffbalanceSheetRisksExpirationsYearThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="CapitalConservationBuffer" id="cznc_CapitalConservationBuffer" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="PhasedInBeginning2018Member" id="cznc_PhasedInBeginning2018Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" id="cznc_CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="MinimumCommonEquityTier1CapitalRatioPlusCapitalConservationBuffer" id="cznc_MinimumCommonEquityTier1CapitalRatioPlusCapitalConservationBuffer" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="MinimumTierOneCapitalRatioPlusCapitalConservationBuffer" id="cznc_MinimumTierOneCapitalRatioPlusCapitalConservationBuffer" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="MinimumTotalCapitalRatioPlusCapitalConservationBuffer" id="cznc_MinimumTotalCapitalRatioPlusCapitalConservationBuffer" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="CitizensAndNorthernBankMember" id="cznc_CitizensAndNorthernBankMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CapitalRequiredToMeetTheCorporationsPolicyThresholds" id="cznc_CapitalRequiredToMeetTheCorporationsPolicyThresholds" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="CapitalRequiredForCapitalAdequacyIncludingConservationBuffer" id="cznc_CapitalRequiredForCapitalAdequacyIncludingConservationBuffer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="TierOneCapitalRequiredToMeetTheCorporationsPolicyThresholds" id="cznc_TierOneCapitalRequiredToMeetTheCorporationsPolicyThresholds" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="TierOneRiskBasedCapitalRequiredForCapitalAdequacyIncludingConservationBuffer" id="cznc_TierOneRiskBasedCapitalRequiredForCapitalAdequacyIncludingConservationBuffer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="CommonEquityTierOneRiskBasedCapitalRequiredToMeetTheCorporationsPolicyThresholds" id="cznc_CommonEquityTierOneRiskBasedCapitalRequiredToMeetTheCorporationsPolicyThresholds" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyIncludingCapitalConservationBuffer" id="cznc_CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyIncludingCapitalConservationBuffer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="TierOneLeverageCapitalRequiredToMeetCorporationsPolicyThreshold" id="cznc_TierOneLeverageCapitalRequiredToMeetCorporationsPolicyThreshold" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="CapitalConservationBufferRangeAxis" id="cznc_CapitalConservationBufferRangeAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CapitalConservationBufferRangeDomain" id="cznc_CapitalConservationBufferRangeDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RangeOneMember" id="cznc_RangeOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RangeTwoMember" id="cznc_RangeTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RangeThreeMember" id="cznc_RangeThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RangeFourMember" id="cznc_RangeFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MaximumPayoutAsAPercentageOfEligibleRetainedIncome" id="cznc_MaximumPayoutAsAPercentageOfEligibleRetainedIncome" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="CitizensAndNorthernInvestmentCorporationMember" id="cznc_CitizensAndNorthernInvestmentCorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BucktailLifeInsuranceCompanyMember" id="cznc_BucktailLifeInsuranceCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AccruedPurchaseOfAvailableForSaleDebtSecurities" id="cznc_AccruedPurchaseOfAvailableForSaleDebtSecurities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="BusinessAcquisitionTransactionCostsNetOfTax" id="cznc_BusinessAcquisitionTransactionCostsNetOfTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="BusinessAcquisitionTransactionCostsIncludingAcquireesExpenses" id="cznc_BusinessAcquisitionTransactionCostsIncludingAcquireesExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NumberOfMutualFund" id="cznc_NumberOfMutualFund" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="ScheduleOfSubordinatedDebtTableTextBlock" id="cznc_ScheduleOfSubordinatedDebtTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PaymentsToAcquireBusinessesCashIncludingStockIssuanceCost" id="cznc_PaymentsToAcquireBusinessesCashIncludingStockIssuanceCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableNetOfIssuanceCost" id="cznc_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableNetOfIssuanceCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="U.s.TreasuryDebtSecuritiesMember" id="cznc_U.s.TreasuryDebtSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LoansAndLeasesReceivableRelatedPartiesOther" id="cznc_LoansAndLeasesReceivableRelatedPartiesOther" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="DepositsDisclosureAbstract" id="cznc_DepositsDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EmployeeAndPostretirementBenefitsPlansAbstract" id="cznc_EmployeeAndPostretirementBenefitsPlansAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RegulatoryMattersAbstract" id="cznc_RegulatoryMattersAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebtSecuritiesAvailableForSaleUnrealizedLossPositionLineItems" id="cznc_DebtSecuritiesAvailableForSaleUnrealizedLossPositionLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EquitySecuritiesFvNiAndWithoutReadilyDeterminableFairValueLineItems" id="cznc_EquitySecuritiesFvNiAndWithoutReadilyDeterminableFairValueLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PensionAndOtherPostretirementBenefitsShareBasedPaymentArrangementTextBlock" id="cznc_PensionAndOtherPostretirementBenefitsShareBasedPaymentArrangementTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DeferredTaxAssetsOperatingLeaseLiability" id="cznc_DeferredTaxAssetsOperatingLeaseLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="NumberOfEquitySecuritiesSold" id="cznc_NumberOfEquitySecuritiesSold" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DeferredCompensationMonthlyPaymentsToBeMadeToExecutivesOrHisHeirs" id="cznc_DeferredCompensationMonthlyPaymentsToBeMadeToExecutivesOrHisHeirs" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="PensionAndOtherEmployeeBenefitsExpensesMember" id="cznc_PensionAndOtherEmployeeBenefitsExpensesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DeferredCompensationLiabilityDiscountRate" id="cznc_DeferredCompensationLiabilityDiscountRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InvestmentInSubsidiary" id="cznc_InvestmentInSubsidiary" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="SubordinatedDebtFairValue" id="cznc_SubordinatedDebtFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="NumberOfDirectors" id="cznc_NumberOfDirectors" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NumberOfExecutiveDirectors" id="cznc_NumberOfExecutiveDirectors" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="EffectiveIncomeRateReconciliationIncreaseInCashSurrenderValueOfLifeInsurance" id="cznc_EffectiveIncomeRateReconciliationIncreaseInCashSurrenderValueOfLifeInsurance" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ObligationsOfStatesAndPoliticalSubdivisionsTaxExemptMember" id="cznc_ObligationsOfStatesAndPoliticalSubdivisionsTaxExemptMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ObligationsOfStatesAndPoliticalSubdivisionsTaxableMember" id="cznc_ObligationsOfStatesAndPoliticalSubdivisionsTaxableMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ResidentialPassthroughSecuritiesMember" id="cznc_ResidentialPassthroughSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ResidentialCollateralizedMortgageObligationsMember" id="cznc_ResidentialCollateralizedMortgageObligationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ImpairedLoansMember" id="cznc_ImpairedLoansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ForeclosedAssetsHeldForSaleMember" id="cznc_ForeclosedAssetsHeldForSaleMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CommercialRealEstateReceivablesMember" id="cznc_CommercialRealEstateReceivablesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AvailableForSaleSecuritiesNetRealizedGainTaxProvision" id="cznc_AvailableForSaleSecuritiesNetRealizedGainTaxProvision" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresWeightedAverageForfeitureDateFairValue" id="cznc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresWeightedAverageForfeitureDateFairValue" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncomeTaxReconciliationIncreaseInCashSurrenderValueOfLifeInsurance" id="cznc_IncomeTaxReconciliationIncreaseInCashSurrenderValueOfLifeInsurance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="FairValueDisclosureOffBalanceSheetRisksExpirationsNext12Months" id="cznc_FairValueDisclosureOffBalanceSheetRisksExpirationsNext12Months" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="FairValueDisclosureOffBalanceSheetRisksExpirationsYearTwo" id="cznc_FairValueDisclosureOffBalanceSheetRisksExpirationsYearTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="EffectiveIncomeTaxRateReconciliationDeductionEmployeeStockOwnershipPlanDividendPercent1" id="cznc_EffectiveIncomeTaxRateReconciliationDeductionEmployeeStockOwnershipPlanDividendPercent1" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TrustRevenue" id="cznc_TrustRevenue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ThreePointTwoFivePercentSubordinatedDebtMaturingInJune2031AndRedeemableAtParInJune2026Member" id="cznc_ThreePointTwoFivePercentSubordinatedDebtMaturingInJune2031AndRedeemableAtParInJune2026Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InterestExpenseSeniorNotes" id="cznc_InterestExpenseSeniorNotes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfSeniorNotesTableTextBlock" id="cznc_ScheduleOfSeniorNotesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RestrictedStockPurchasedForTaxWithholding" id="cznc_RestrictedStockPurchasedForTaxWithholding" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="RestrictedStockPurchasedForTaxWithholdingShares" id="cznc_RestrictedStockPurchasedForTaxWithholdingShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PaymentsForRepurchaseOfTreasuryStock" id="cznc_PaymentsForRepurchaseOfTreasuryStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="BankHoldingCompanyDebtSecuritiesMember" id="cznc_BankHoldingCompanyDebtSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DataProcessingAndTelecommunicationsExpenseMember" id="cznc_DataProcessingAndTelecommunicationsExpenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CapitalConservationBufferLowerLimit" id="cznc_CapitalConservationBufferLowerLimit" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="CapitalConservationBufferUpperLimit" id="cznc_CapitalConservationBufferUpperLimit" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NonaccrualLoansToAccrualStatusContractualPerformancePeriod" id="cznc_NonaccrualLoansToAccrualStatusContractualPerformancePeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TreasuryStockPolicyTextBlock" id="cznc_TreasuryStockPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DepositsSecured" id="cznc_DepositsSecured" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ProceedsFromMaturitiesOfCertificatesOfDeposit" id="cznc_ProceedsFromMaturitiesOfCertificatesOfDeposit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ImpairedFinancingReceivableRelatedAllowance1" id="cznc_ImpairedFinancingReceivableRelatedAllowance1" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment1" id="cznc_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment1" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PrivateLabelCommercialMortgageBackedSecuritiesMember" id="cznc_PrivateLabelCommercialMortgageBackedSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DeferredTaxAssetsAccruedIncentiveCompensation" id="cznc_DeferredTaxAssetsAccruedIncentiveCompensation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="RiskParticipationAgreementsOutMember" id="cznc_RiskParticipationAgreementsOutMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RiskParticipationAgreementsInMember" id="cznc_RiskParticipationAgreementsInMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DerivativesFeeIncome" id="cznc_DerivativesFeeIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NumberOfDerivativesOriginated" id="cznc_NumberOfDerivativesOriginated" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="OneInterestRateSwapOriginatedMember" id="cznc_OneInterestRateSwapOriginatedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NetEffectFromRiskParticipationAgreementsTransactions" id="cznc_NetEffectFromRiskParticipationAgreementsTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CommercialRealEstateLoansNonownerOccupiedMember" id="cznc_CommercialRealEstateLoansNonownerOccupiedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommercialRealEstateLoansOwnerOccupiedMember" id="cznc_CommercialRealEstateLoansOwnerOccupiedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinancingReceivableExcludingAccruedInterestNonaccrualWithAllowance" id="cznc_FinancingReceivableExcludingAccruedInterestNonaccrualWithAllowance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FinancingReceivableAccruedInterestWriteoffTableTextBlock" id="cznc_FinancingReceivableAccruedInterestWriteoffTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FinancingReceivableRecordedInvestmentCollateralDependentLoans" id="cznc_FinancingReceivableRecordedInvestmentCollateralDependentLoans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FinancingReceivableCollateralDependentLoansTableTextBlock" id="cznc_FinancingReceivableCollateralDependentLoansTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfOffBalanceSheetCreditLossLiabilityTableTextBlock" id="cznc_ScheduleOfOffBalanceSheetCreditLossLiabilityTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FinancingReceivableIndividuallyEvaluatedForImpairmentThresholdAmount" id="cznc_FinancingReceivableIndividuallyEvaluatedForImpairmentThresholdAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FinancingReceivableEstimatedWeightedAverageRemainingMaturityAverageLife" id="cznc_FinancingReceivableEstimatedWeightedAverageRemainingMaturityAverageLife" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FinancingReceivableIndividuallyEvaluatedForImpairmentFairValue" id="cznc_FinancingReceivableIndividuallyEvaluatedForImpairmentFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FederalHomeLoanBankBorrowingsLoanMaturingIn2027WithRateOf4.00Member" id="cznc_FederalHomeLoanBankBorrowingsLoanMaturingIn2027WithRateOf4.00Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FederalHomeLoanBankBorrowingsLoanMaturingIn2028WithRateOf3.72Member" id="cznc_FederalHomeLoanBankBorrowingsLoanMaturingIn2028WithRateOf3.72Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommercialLoansOtherThanNonownerOccupiedAndOwnerOccupiedMember" id="cznc_CommercialLoansOtherThanNonownerOccupiedAndOwnerOccupiedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ConsumerPortfolioSegmentNewMember" id="cznc_ConsumerPortfolioSegmentNewMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ResidentialPortfolioSegmentNewMember" id="cznc_ResidentialPortfolioSegmentNewMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommercialRealEstateLoansOwnerOccupiedExcludingPurchasedCreditImpairedMember" id="cznc_CommercialRealEstateLoansOwnerOccupiedExcludingPurchasedCreditImpairedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommercialLoansOtherThanNonownerOccupiedAndOwnerOccupiedExcludingPurchasedCreditImpairedMember" id="cznc_CommercialLoansOtherThanNonownerOccupiedAndOwnerOccupiedExcludingPurchasedCreditImpairedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinanceLoansReceivableAllowanceForLossesPolicyPolicyTextBlock" id="cznc_FinanceLoansReceivableAllowanceForLossesPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FinancingReceivableForecastRelevantToCollectabilityOfCashFlows" id="cznc_FinancingReceivableForecastRelevantToCollectabilityOfCashFlows" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PaymentsToAcquireFederalHomeLoanBankStockPittsburgh" id="cznc_PaymentsToAcquireFederalHomeLoanBankStockPittsburgh" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="RiskParticipationAgreementOutMember" id="cznc_RiskParticipationAgreementOutMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FederalHomeLoanBankBorrowingsLoanMaturingIn2026WithRateOf4.44Member" id="cznc_FederalHomeLoanBankBorrowingsLoanMaturingIn2026WithRateOf4.44Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PerformanceBasedRestrictedStockAwardMember" id="cznc_PerformanceBasedRestrictedStockAwardMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EquityIncentivePlan2023Member" id="cznc_EquityIncentivePlan2023Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseSurrenderOfBankOwnedLifeInsuranceAmount" id="cznc_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseSurrenderOfBankOwnedLifeInsuranceAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseSurrenderOfBankOwnedLifeInsurancePercent" id="cznc_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseSurrenderOfBankOwnedLifeInsurancePercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseInterestAmount" id="cznc_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseInterestAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseInterestPercent" id="cznc_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseInterestPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="OffBalanceSheetFinancialInstrumentsPolicyTextBlock" id="cznc_OffBalanceSheetFinancialInstrumentsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FinancingReceivableModifiedNumberOfBorrower" id="cznc_FinancingReceivableModifiedNumberOfBorrower" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="BorrowerOneMember" id="cznc_BorrowerOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BorrowerTwoMember" id="cznc_BorrowerTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinancingReceivablePastDue" id="cznc_FinancingReceivablePastDue" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="LoansMaturingIn2025WithWeightedAverageRateOf4.30Member" id="cznc_LoansMaturingIn2025WithWeightedAverageRateOf4.30Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LoansMaturingIn2029WithWeightedAverageRateOf4.42Member" id="cznc_LoansMaturingIn2029WithWeightedAverageRateOf4.42Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LoansMaturingIn2026WithWeightedAverageRateOf4.61Member" id="cznc_LoansMaturingIn2026WithWeightedAverageRateOf4.61Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LoansMaturingIn2027WithWeightedAverageRateOf4.24Member" id="cznc_LoansMaturingIn2027WithWeightedAverageRateOf4.24Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LoansMaturingIn2028WithWeightedAverageRateOf4.30Member" id="cznc_LoansMaturingIn2028WithWeightedAverageRateOf4.30Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="KatherineW.ShattuckMember" id="cznc_KatherineW.ShattuckMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FrankG.PellegrinoMember" id="cznc_FrankG.PellegrinoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RobertG.LougheryMember" id="cznc_RobertG.LougheryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinancingReceivableAllowanceForCreditLossNumberOfIndividuallyEvaluated" id="cznc_FinancingReceivableAllowanceForCreditLossNumberOfIndividuallyEvaluated" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="DebtSecurityDelinquentPeriodPutInNonaccrual" id="cznc_DebtSecurityDelinquentPeriodPutInNonaccrual" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="LoansPortfolioNumberOfExtensionForIndividualReview" id="cznc_LoansPortfolioNumberOfExtensionForIndividualReview" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CreditFacilitiesRepaymentTerm" id="cznc_CreditFacilitiesRepaymentTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PonziSchemeMember" id="cznc_PonziSchemeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LossContingencyPonziSchemeOperators" id="cznc_LossContingencyPonziSchemeOperators" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="LossContingencyPonziSchemeOperatorsBankDepositor" id="cznc_LossContingencyPonziSchemeOperatorsBankDepositor" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SingleReportableSegmentMember" id="cznc_SingleReportableSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AcquiredSupplementalRetirementBenefitToFormerExecutiveMember" id="cznc_AcquiredSupplementalRetirementBenefitToFormerExecutiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SusquehannaCommunityFinancialInc.Member" id="cznc_SusquehannaCommunityFinancialInc.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BusinessCombinationEntitysSharesForEachAcquireeShare" id="cznc_BusinessCombinationEntitysSharesForEachAcquireeShare" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="FinancingReceivableModificationsNumberOfContracts3" id="cznc_FinancingReceivableModificationsNumberOfContracts3" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MarketableEquitySecuritiesInEntityAcquiredInBusinessAcquisition" id="cznc_MarketableEquitySecuritiesInEntityAcquiredInBusinessAcquisition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MarketableEquitySecuritiesSharesInEntityAcquiredInBusinessAcquisition" id="cznc_MarketableEquitySecuritiesSharesInEntityAcquiredInBusinessAcquisition" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AccountingStandardsUpdate202508Member" id="cznc_AccountingStandardsUpdate202508Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinancingReceivableAllowanceForCreditLossPurchasedSeasonedLoan" id="cznc_FinancingReceivableAllowanceForCreditLossPurchasedSeasonedLoan" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FinancingReceivablePastDueNumberOfOnTimePaymentsToChangeToPass" id="cznc_FinancingReceivablePastDueNumberOfOnTimePaymentsToChangeToPass" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="FinancingReceivableAllowanceForCreditLossPurchasedCreditDeterioratedLoans" id="cznc_FinancingReceivableAllowanceForCreditLossPurchasedCreditDeterioratedLoans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FinancingReceivableAllowanceForCreditLossPurchasedCreditNonDeterioratedLoans" id="cznc_FinancingReceivableAllowanceForCreditLossPurchasedCreditNonDeterioratedLoans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FinancialAsset30To89DaysPastDueMember" id="cznc_FinancialAsset30To89DaysPastDueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StateAndLocalTaxJurisdictionNewJerseyMember" id="cznc_StateAndLocalTaxJurisdictionNewJerseyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StateAndLocalTaxJurisdictionNewYorkMember" id="cznc_StateAndLocalTaxJurisdictionNewYorkMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OffBalanceSheetExposureBusinessCombination" id="cznc_OffBalanceSheetExposureBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DefinedBenefitPlanPlanAssetsPaymentForSettlementPercentageOfBenefitObligation" id="cznc_DefinedBenefitPlanPlanAssetsPaymentForSettlementPercentageOfBenefitObligation" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SusquehannaCommunityFinancialInc.DeferredCompensationOneOfficerMember" id="cznc_SusquehannaCommunityFinancialInc.DeferredCompensationOneOfficerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SusquehannaCommunityFinancialInc.DeferredCompensationOtherOfficersMember" id="cznc_SusquehannaCommunityFinancialInc.DeferredCompensationOtherOfficersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DeferredCompensationArrangementPaymentCurrentYear" id="cznc_DeferredCompensationArrangementPaymentCurrentYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredCompensationArrangementLiabilityYearOne" id="cznc_DeferredCompensationArrangementLiabilityYearOne" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredCompensationArrangementLiabilityYearTwo" id="cznc_DeferredCompensationArrangementLiabilityYearTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredCompensationArrangementLiabilityYearThree" id="cznc_DeferredCompensationArrangementLiabilityYearThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SusquehannaCommunityFinancialInc.DeferredCompensationMember" id="cznc_SusquehannaCommunityFinancialInc.DeferredCompensationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BusinessCombinationAcquireeBankingOffices" id="cznc_BusinessCombinationAcquireeBankingOffices" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="BusinessCombinationAcquireeSSharesOutstanding" id="cznc_BusinessCombinationAcquireeSSharesOutstanding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="BusinessCombinationAcquirerEquivalentSharesBeforeFractionalShares" id="cznc_BusinessCombinationAcquirerEquivalentSharesBeforeFractionalShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="BusinessCombinationAcquirerEquivalentSharesFractionalShares" id="cznc_BusinessCombinationAcquirerEquivalentSharesFractionalShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="BusinessCombinationRecognizedAssetAcquiredBankOwnedLifeInsurance" id="cznc_BusinessCombinationRecognizedAssetAcquiredBankOwnedLifeInsurance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="BusinessCombinationRecognizedAssetAcquiredFinancingReceivableAllowanceForCreditLossPurchasedCreditDeterioratedLoans" id="cznc_BusinessCombinationRecognizedAssetAcquiredFinancingReceivableAllowanceForCreditLossPurchasedCreditDeterioratedLoans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BusinessCombinationRecognizedAssetAcquiredFinancingReceivablePurchasedCreditDeterioratedLoans" id="cznc_BusinessCombinationRecognizedAssetAcquiredFinancingReceivablePurchasedCreditDeterioratedLoans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="BusinessCombinationRecognizedAssetAcquiredFinancingReceivablePurchasedCreditDeterioratedLoansAbstact" id="cznc_BusinessCombinationRecognizedAssetAcquiredFinancingReceivablePurchasedCreditDeterioratedLoansAbstact" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BusinessCombinationRecognizedAssetAcquiredFinancingReceivablePurchasedCreditDeterioratedLoansOtherDiscount" id="cznc_BusinessCombinationRecognizedAssetAcquiredFinancingReceivablePurchasedCreditDeterioratedLoansOtherDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BusinessCombinationRecognizedAssetAcquiredFinancingReceivablePurchasedCreditDeterioratedLoansFairValue" id="cznc_BusinessCombinationRecognizedAssetAcquiredFinancingReceivablePurchasedCreditDeterioratedLoansFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="BusinessCombinationRecognizedAssetAcquiredFinancingReceivableNonPurchasedCreditDeterioratedLoansAbstact" id="cznc_BusinessCombinationRecognizedAssetAcquiredFinancingReceivableNonPurchasedCreditDeterioratedLoansAbstact" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BusinessCombinationRecognizedAssetAcquiredFinancingReceivableNonPurchasedCreditDeterioratedLoans" id="cznc_BusinessCombinationRecognizedAssetAcquiredFinancingReceivableNonPurchasedCreditDeterioratedLoans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="BusinessCombinationRecognizedAssetAcquiredFinancingReceivableNonPurchasedCreditDeterioratedLoansFairValue" id="cznc_BusinessCombinationRecognizedAssetAcquiredFinancingReceivableNonPurchasedCreditDeterioratedLoansFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="BusinessCombinationRecognizedAssetAcquiredFinancingReceivableNonPurchasedCreditDeterioratedLoansOtherDiscount" id="cznc_BusinessCombinationRecognizedAssetAcquiredFinancingReceivableNonPurchasedCreditDeterioratedLoansOtherDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BusinessCombinationRecognizedAssetAcquiredFinancingReceivableNonPurchasedCreditDeterioratedLoansAllowanceForCreditLoss" id="cznc_BusinessCombinationRecognizedAssetAcquiredFinancingReceivableNonPurchasedCreditDeterioratedLoansAllowanceForCreditLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BusinessCombinationProFormaInformationProFormaNetInterestIncome" id="cznc_BusinessCombinationProFormaInformationProFormaNetInterestIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BankAndPremisesFairValueAdjustmentMember" id="cznc_BankAndPremisesFairValueAdjustmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CoreDepositsTimeDepositFairValueAdjustmentMember" id="cznc_CoreDepositsTimeDepositFairValueAdjustmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BusinessCombinationCategoriesOfDepositLiabilities" id="cznc_BusinessCombinationCategoriesOfDepositLiabilities" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="ScheduleOfIncomeTaxesPaidNetOfRefundsReceivedTableTextBlock" id="cznc_ScheduleOfIncomeTaxesPaidNetOfRefundsReceivedTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfBusinessAcquisitionsFairValueMeasurementsOfPurchasedCreditDeterioratedAndNonPurchasedCreditDeterioratedLoansTableTextBlock" id="cznc_ScheduleOfBusinessAcquisitionsFairValueMeasurementsOfPurchasedCreditDeterioratedAndNonPurchasedCreditDeterioratedLoansTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CapitalConservationBufferNumberOfEligibleQuartersIncome" id="cznc_CapitalConservationBufferNumberOfEligibleQuartersIncome" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
</xsd:schema>
