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  <xsd:element abstract="true" id="bsrr_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="bsrr_NumberOfBranches" name="NumberOfBranches" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="bsrr_OtherCommercialMember" name="OtherCommercialMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_OtherConstructionlandMember" name="OtherConstructionlandMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_OtherServiceChargesOnDepositsMember" name="OtherServiceChargesOnDepositsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="bsrr_OtherTaxBenefitsInvestments" name="OtherTaxBenefitsInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_OtherborrowingsMember" name="OtherborrowingsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="bsrr_PaymentToAcquireSplitDollarLifeInsurancePolicyInvestingActivities" name="PaymentToAcquireSplitDollarLifeInsurancePolicyInvestingActivities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="bsrr_PeerGroupAssetSize" name="PeerGroupAssetSize" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="bsrr_ProceedsFromPaydownsOfDebtSecuritiesAvailableforsale" name="ProceedsFromPaydownsOfDebtSecuritiesAvailableforsale" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="bsrr_ProceedsFromPaydownsOfHeldtomaturitySecurities" name="ProceedsFromPaydownsOfHeldtomaturitySecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="bsrr_RealEstateAcquiredThroughForeclosurePartOfNoncashInvestingAndFinancingActivates" name="RealEstateAcquiredThroughForeclosurePartOfNoncashInvestingAndFinancingActivates" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_ReturnedItemAndOverdraftFeesMember" name="ReturnedItemAndOverdraftFeesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="bsrr_RevenueNotWithinAsc606Percentage" name="RevenueNotWithinAsc606Percentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="bsrr_ScheduleOfCollateralDependentLoansTableTextBlock" name="ScheduleOfCollateralDependentLoansTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_SeasonedLoansMember" name="SeasonedLoansMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="bsrr_ShareRepurchaseProgramExciseTaxAfterImpactFromCompensationPlans" name="ShareRepurchaseProgramExciseTaxAfterImpactFromCompensationPlans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_The2007PlanMember" name="The2007PlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_The2017PlanMember" name="The2017PlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_The2023PlanMember" name="The2023PlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_UsStatesAndPoliticalSubdivisionsDebtSecuritiesExcludingPrerefundedAndEscrowedToMaturityMember" name="UsStatesAndPoliticalSubdivisionsDebtSecuritiesExcludingPrerefundedAndEscrowedToMaturityMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-10-loans-and-allowance-for-credit-losses-allowance-for-credit-losses-details" name="statement-statement-note-10-loans-and-allowance-for-credit-losses-allowance-for-credit-losses-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-10-loans-and-allowance-for-credit-losses-collateral-dependent-loans-details" name="statement-statement-note-10-loans-and-allowance-for-credit-losses-collateral-dependent-loans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-10-loans-and-allowance-for-credit-losses-credit-quality-by-vintage-details" name="statement-statement-note-10-loans-and-allowance-for-credit-losses-credit-quality-by-vintage-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-10-loans-and-allowance-for-credit-losses-loan-distribution-details" name="statement-statement-note-10-loans-and-allowance-for-credit-losses-loan-distribution-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-10-loans-and-allowance-for-credit-losses-modified-loans-details" name="statement-statement-note-10-loans-and-allowance-for-credit-losses-modified-loans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-10-loans-and-allowance-for-credit-losses-nonaccrual-loans-details" name="statement-statement-note-10-loans-and-allowance-for-credit-losses-nonaccrual-loans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-10-loans-and-allowance-for-credit-losses-past-due-loans-details" name="statement-statement-note-10-loans-and-allowance-for-credit-losses-past-due-loans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-10-loans-and-allowance-for-credit-losses-tables" name="statement-statement-note-10-loans-and-allowance-for-credit-losses-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-12-borrowings-and-other-arrangements-other-borrowings-details" name="statement-statement-note-12-borrowings-and-other-arrangements-other-borrowings-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-12-borrowings-and-other-arrangements-tables" name="statement-statement-note-12-borrowings-and-other-arrangements-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-13-revenue-recognition-schedule-of-revenue-recognition-details" name="statement-statement-note-13-revenue-recognition-schedule-of-revenue-recognition-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-13-revenue-recognition-tables" name="statement-statement-note-13-revenue-recognition-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-2-basis-of-presentation-revision-of-previously-reported-financial-statements-details" name="statement-statement-note-2-basis-of-presentation-revision-of-previously-reported-financial-statements-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-2-basis-of-presentation-tables" name="statement-statement-note-2-basis-of-presentation-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-4-share-based-compensation-option-activity-details" name="statement-statement-note-4-share-based-compensation-option-activity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-4-share-based-compensation-restricted-stock-award-activity-details" name="statement-statement-note-4-share-based-compensation-restricted-stock-award-activity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-4-share-based-compensation-tables" name="statement-statement-note-4-share-based-compensation-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-5-earnings-per-share-schedule-of-earnings-per-share-details" name="statement-statement-note-5-earnings-per-share-schedule-of-earnings-per-share-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-5-earnings-per-share-tables" name="statement-statement-note-5-earnings-per-share-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-7-commitments-and-contingent-liabilities-schedule-of-offbalancesheet-instruments-details" name="statement-statement-note-7-commitments-and-contingent-liabilities-schedule-of-offbalancesheet-instruments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-7-commitments-and-contingent-liabilities-tables" name="statement-statement-note-7-commitments-and-contingent-liabilities-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-8-fair-value-disclosures-and-reporting-and-fair-value-measurements-fair-value-of-financial-instruments-details" name="statement-statement-note-8-fair-value-disclosures-and-reporting-and-fair-value-measurements-fair-value-of-financial-instruments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-8-fair-value-disclosures-and-reporting-and-fair-value-measurements-level-3-quantitative-information-details" name="statement-statement-note-8-fair-value-disclosures-and-reporting-and-fair-value-measurements-level-3-quantitative-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-8-fair-value-disclosures-and-reporting-and-fair-value-measurements-level-3-reconciliation-details" name="statement-statement-note-8-fair-value-disclosures-and-reporting-and-fair-value-measurements-level-3-reconciliation-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-8-fair-value-disclosures-and-reporting-and-fair-value-measurements-nonrecurring-fair-value-measurements-details" name="statement-statement-note-8-fair-value-disclosures-and-reporting-and-fair-value-measurements-nonrecurring-fair-value-measurements-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-8-fair-value-disclosures-and-reporting-and-fair-value-measurements-recurring-fair-value-measurements-details" name="statement-statement-note-8-fair-value-disclosures-and-reporting-and-fair-value-measurements-recurring-fair-value-measurements-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-8-fair-value-disclosures-and-reporting-and-fair-value-measurements-tables" name="statement-statement-note-8-fair-value-disclosures-and-reporting-and-fair-value-measurements-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-9-investments-heldtomaturity-by-credit-rating-details" name="statement-statement-note-9-investments-heldtomaturity-by-credit-rating-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-9-investments-investments-by-contractual-maturity-details" name="statement-statement-note-9-investments-investments-by-contractual-maturity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-9-investments-realized-gainslosses-details" name="statement-statement-note-9-investments-realized-gainslosses-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-9-investments-schedule-of-amortized-cost-and-fair-value-details" name="statement-statement-note-9-investments-schedule-of-amortized-cost-and-fair-value-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-9-investments-tables" name="statement-statement-note-9-investments-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="bsrr_statement-statement-note-9-investments-unrealized-losses-details" name="statement-statement-note-9-investments-unrealized-losses-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
