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  <xsd:element name="DepositsEscrowedAccounts" id="fsbw_DepositsEscrowedAccounts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
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  <xsd:element name="ScheduleOfInterestExpenseByDepositCategoryTableTextBlock" id="fsbw_ScheduleOfInterestExpenseByDepositCategoryTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsConditionalRepaymentRateAfter0.5AdverseChangeInNoteRate" id="fsbw_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsConditionalRepaymentRateAfter0.5AdverseChangeInNoteRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
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  <xsd:element name="ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageRateOfNote" id="fsbw_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageRateOfNote" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
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  <xsd:element name="TimeDepositsBetween100000And250000" id="fsbw_TimeDepositsBetween100000And250000" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="TotalRiskBasedCapital" id="fsbw_TotalRiskBasedCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="WarehouseLendingMember" id="fsbw_WarehouseLendingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
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  <xsd:element name="CollateralSecurityTypeDomain" id="fsbw_CollateralSecurityTypeDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DefinedContributionPlanContributionMatchCategoryAxis" id="fsbw_DefinedContributionPlanContributionMatchCategoryAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DefinedContributionPlanContributionMatchCategoryDomain" id="fsbw_DefinedContributionPlanContributionMatchCategoryDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CashDueFromBanksAndInterestBearingDepositsAtOtherFinancialInstitutionsFairValueDisclosure" id="fsbw_CashDueFromBanksAndInterestBearingDepositsAtOtherFinancialInstitutionsFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="SubordinatedDebtGross" id="fsbw_SubordinatedDebtGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="SubordinatedDebtNetOfUnamortizedDebtIssuanceCosts" id="fsbw_SubordinatedDebtNetOfUnamortizedDebtIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="RetentionOfMortgageServicingRightsFromLoanSales" id="fsbw_RetentionOfMortgageServicingRightsFromLoanSales" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfDepositLiabilitiesTableTextBlock" id="fsbw_ScheduleOfDepositLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BankOfAmericaMember" id="fsbw_BankOfAmericaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SupplementalDisclosuresOfCashFlowInformationCashPaymentsRollForward" id="fsbw_SupplementalDisclosuresOfCashFlowInformationCashPaymentsRollForward" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MandatoryAndBestEffortForwardCommitmentsMember" id="fsbw_MandatoryAndBestEffortForwardCommitmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentage" id="fsbw_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SaleOfLoansToFederalHomeLoanBank" id="fsbw_SaleOfLoansToFederalHomeLoanBank" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="FederalHomeLoanBankRecourseObligationPercentageOfLoansOutstanding" id="fsbw_FederalHomeLoanBankRecourseObligationPercentageOfLoansOutstanding" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AllowanceForLoanAndLeaseLossesLoansSoldPercentageOfOutstandingCreditEnhancement" id="fsbw_AllowanceForLoanAndLeaseLossesLoansSoldPercentageOfOutstandingCreditEnhancement" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OutstandingDelinquenciesOnLoansSoldToFederalHomeLoanBank" id="fsbw_OutstandingDelinquenciesOnLoansSoldToFederalHomeLoanBank" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ServicingAssetAtAmortizedCostImpairmentRecovery" id="fsbw_ServicingAssetAtAmortizedCostImpairmentRecovery" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ServicingLiabilityAtFairValueBasisPointsDropInNoteRateAssumptionOne" id="fsbw_ServicingLiabilityAtFairValueBasisPointsDropInNoteRateAssumptionOne" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="ServicingLiabilityAtFairValueBasisPointsDropInNoteRateAssumptionTwo" id="fsbw_ServicingLiabilityAtFairValueBasisPointsDropInNoteRateAssumptionTwo" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="CommercialAndConsumerBankingMember" id="fsbw_CommercialAndConsumerBankingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ApplicationOfNewAccountingGuidance" id="fsbw_ApplicationOfNewAccountingGuidance" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GainLossOnSaleOfLoansHeldForSale" id="fsbw_GainLossOnSaleOfLoansHeldForSale" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedForfeitureRateOverContractualTerm" id="fsbw_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedForfeitureRateOverContractualTerm" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CapitalRequiredForCapitalAdequacyWithCapitalBuffer" id="fsbw_CapitalRequiredForCapitalAdequacyWithCapitalBuffer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="CapitalRequiredForCapitalAdequacyWithCapitalBufferToRiskWeightedAssets" id="fsbw_CapitalRequiredForCapitalAdequacyWithCapitalBufferToRiskWeightedAssets" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="TierOneRiskBasedMinimumCapitalAdequacyWithCapitalBuffer" id="fsbw_TierOneRiskBasedMinimumCapitalAdequacyWithCapitalBuffer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="TierOneRiskBasedCapitalRequiredForCapitalAdequacyWithCapitalBufferToRiskWeightedAssets" id="fsbw_TierOneRiskBasedCapitalRequiredForCapitalAdequacyWithCapitalBufferToRiskWeightedAssets" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="TierOneCommonEquityCapitalMinimumCapitalAdequacyWithCapitalBuffer" id="fsbw_TierOneCommonEquityCapitalMinimumCapitalAdequacyWithCapitalBuffer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="CommonEquityTierOneRiskBasedCapitalRequiredForMinimumCapitalAdequacyWithCapitalBufferPurposesRiskWeightedAssets" id="fsbw_CommonEquityTierOneRiskBasedCapitalRequiredForMinimumCapitalAdequacyWithCapitalBufferPurposesRiskWeightedAssets" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTableTextBlock" id="fsbw_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebitCardInterchangeFeesMember" id="fsbw_DebitCardInterchangeFeesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MeasurementInputPullThroughExpectationsMember" id="fsbw_MeasurementInputPullThroughExpectationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MeasurementInputDiscountAppliedToObtainedAppraisalMember" id="fsbw_MeasurementInputDiscountAppliedToObtainedAppraisalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AnchorBancorpMember" id="fsbw_AnchorBancorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EquityIncentivePlan2018Member" id="fsbw_EquityIncentivePlan2018Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EquityOptionAndRestrictedStockMember" id="fsbw_EquityOptionAndRestrictedStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfWarehouseLendingDivisions" id="fsbw_NumberOfWarehouseLendingDivisions" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NumberOfAdministrativeOfficesThatAcceptDeposits" id="fsbw_NumberOfAdministrativeOfficesThatAcceptDeposits" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="OtherRealEstateOwned" id="fsbw_OtherRealEstateOwned" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherRealEstateOwned" id="fsbw_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherRealEstateOwned" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="NumberOfLoansAccruingInterest" id="fsbw_NumberOfLoansAccruingInterest" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="ConsumerLoansOtherMember" id="fsbw_ConsumerLoansOtherMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ServicingRightsMember" id="fsbw_ServicingRightsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IndustrySourcesMember" id="fsbw_IndustrySourcesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FairValueOfCollateralMember" id="fsbw_FairValueOfCollateralMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PrepaymentSpeedsMember" id="fsbw_PrepaymentSpeedsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ServicingRights" id="fsbw_ServicingRights" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedForFederalReserveBankLineOfCredit" id="fsbw_PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedForFederalReserveBankLineOfCredit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NumeratorInThousands" id="fsbw_NumeratorInThousands" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DenominatorShownAsActual" id="fsbw_DenominatorShownAsActual" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DividendsAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic" id="fsbw_DividendsAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="StockOptionsAndRestrictedStockAwardsCompensation" id="fsbw_StockOptionsAndRestrictedStockAwardsCompensation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AvailableForSaleSecuritiesContinuousUnrealizedLossPositionMoreThanTwelveMonthsNumber" id="fsbw_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionMoreThanTwelveMonthsNumber" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RealEstateLoanPortfolioSegmentMember" id="fsbw_RealEstateLoanPortfolioSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OfficersAndEmployeesMember" id="fsbw_OfficersAndEmployeesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DirectorExcludingCeoMember" id="fsbw_DirectorExcludingCeoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfTroubledDebtRestructuredLoans" id="fsbw_NumberOfTroubledDebtRestructuredLoans" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="SupplementalInformationRelatedToOperatingLeasesTableTextBlock" id="fsbw_SupplementalInformationRelatedToOperatingLeasesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MortgageLoansHeldForSaleMember" id="fsbw_MortgageLoansHeldForSaleMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RightOfUseAssetObtainedInExchangeForLeaseLiability" id="fsbw_RightOfUseAssetObtainedInExchangeForLeaseLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="WatchMember" id="fsbw_WatchMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ForwardTbaMortgageBackedSecuritiesCommitmentLiabilityAtFairValue" id="fsbw_ForwardTbaMortgageBackedSecuritiesCommitmentLiabilityAtFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="MandatoryAndBestEffortForwardCommitmentsWithInvestorsAtFairValue" id="fsbw_MandatoryAndBestEffortForwardCommitmentsWithInvestorsAtFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="MandatoryAndBestEffortForwardCommitmentsWithInvestorsMember" id="fsbw_MandatoryAndBestEffortForwardCommitmentsWithInvestorsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ForwardTbaMortgageBackedSecuritiesMember" id="fsbw_ForwardTbaMortgageBackedSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebtSecuritiesAvailableForSaleAndHeldToMaturityContinuousUnrealizedLossPositionLessThan12MonthsFairValue" id="fsbw_DebtSecuritiesAvailableForSaleAndHeldToMaturityContinuousUnrealizedLossPositionLessThan12MonthsFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="DebtSecuritiesAvailableForSaleAndHeldToMaturityContinuousUnrealizedLossPosition12MonthsOrLongerFairValue" id="fsbw_DebtSecuritiesAvailableForSaleAndHeldToMaturityContinuousUnrealizedLossPosition12MonthsOrLongerFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="DebtSecuritiesAvailableForSaleAndHeldToMaturityUnrealizedLossPositionFairValue" id="fsbw_DebtSecuritiesAvailableForSaleAndHeldToMaturityUnrealizedLossPositionFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="DebtSecuritiesAvailableForSaleAndHeldToMaturityContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" id="fsbw_DebtSecuritiesAvailableForSaleAndHeldToMaturityContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="DebtSecuritiesAvailableForSaleAndHeldToMaturityContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" id="fsbw_DebtSecuritiesAvailableForSaleAndHeldToMaturityContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="DebtSecuritiesAvailableForSaleAndHeldToMaturityUnrealizedLossPositionAccumulatedLoss" id="fsbw_DebtSecuritiesAvailableForSaleAndHeldToMaturityUnrealizedLossPositionAccumulatedLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour" id="fsbw_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="MortgageServicingRightsMember" id="fsbw_MortgageServicingRightsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FirstSecurityBankMember" id="fsbw_FirstSecurityBankMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromDisbursementsOfStockOptionsExercisedNet" id="fsbw_ProceedsFromDisbursementsOfStockOptionsExercisedNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PaymentsForOriginationOfLoansAndPrincipleCollectionsNet" id="fsbw_PaymentsForOriginationOfLoansAndPrincipleCollectionsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="DepositServiceAndAccountMaintenanceFeesMember" id="fsbw_DepositServiceAndAccountMaintenanceFeesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LoansReceivableNumberOfDaysDelinquentToDiscontinueInterestAccrualMinimum" id="fsbw_LoansReceivableNumberOfDaysDelinquentToDiscontinueInterestAccrualMinimum" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ForwardTbaMortgageBackedSecuritiesCommitmentAssetFairValueDisclosure" id="fsbw_ForwardTbaMortgageBackedSecuritiesCommitmentAssetFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="NumberOfTdrsIncurringDefaultWithinTwelveMonthsOfRestructure" id="fsbw_NumberOfTdrsIncurringDefaultWithinTwelveMonthsOfRestructure" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="IndependentDirectorMember" id="fsbw_IndependentDirectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DepositsMoneyMarketDepositsBrokeredDeposits" id="fsbw_DepositsMoneyMarketDepositsBrokeredDeposits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="TimeDepositsLessThan100000BrokeredDeposits" id="fsbw_TimeDepositsLessThan100000BrokeredDeposits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="DebtSecuritiesAllowanceForCreditLossesExcludingAccruedInterest" id="fsbw_DebtSecuritiesAllowanceForCreditLossesExcludingAccruedInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="AllowanceForCreditLossesOnUnfundedLoanCommitments" id="fsbw_AllowanceForCreditLossesOnUnfundedLoanCommitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="LoansReceivableDiscountsOnAcquiredLoans" id="fsbw_LoansReceivableDiscountsOnAcquiredLoans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ScheduleOfCollateralDependentImpairedLoansTableTextBlock" id="fsbw_ScheduleOfCollateralDependentImpairedLoansTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FinancingReceivableNonAccrualWithAllowanceForCreditLosses" id="fsbw_FinancingReceivableNonAccrualWithAllowanceForCreditLosses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="ImpairedLoansCollateral" id="fsbw_ImpairedLoansCollateral" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="HedgedAssetsLiabilitiesCarryingAmount" id="fsbw_HedgedAssetsLiabilitiesCarryingAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="CumulativeAmountOfFairValueHedgingAdjustmentIncludedInCarryingAmountOfHedgedAssetsLiabilities" id="fsbw_CumulativeAmountOfFairValueHedgingAdjustmentIncludedInCarryingAmountOfHedgedAssetsLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="GainLossOnChangeInFairValueOfNonhedgingDerivatives" id="fsbw_GainLossOnChangeInFairValueOfNonhedgingDerivatives" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CollateralAlreadyPostedCarryingValue" id="fsbw_CollateralAlreadyPostedCarryingValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsNumber" id="fsbw_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsNumber" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="HeldToMaturitySecuritiesContinuousUnrealizedLossPositionMoreThanTwelveMonthsNumber" id="fsbw_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionMoreThanTwelveMonthsNumber" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DerivativeHedgingAmortizedCostBasisOfClosedPortfolios" id="fsbw_DerivativeHedgingAmortizedCostBasisOfClosedPortfolios" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="IncreaseDecreaseInFairValueOfLoansReceivable" id="fsbw_IncreaseDecreaseInFairValueOfLoansReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CollateralForTbaTradesMember" id="fsbw_CollateralForTbaTradesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InterestRateLockWithCustomersFairValue" id="fsbw_InterestRateLockWithCustomersFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="ShareBasedPaymentArrangementTrancheFourMember" id="fsbw_ShareBasedPaymentArrangementTrancheFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ColumbiaStateBankMember" id="fsbw_ColumbiaStateBankMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BusinessCombinationMeasurementPeriod" id="fsbw_BusinessCombinationMeasurementPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BusinessCombinationConsiderationTransferredDepositPremiumForCoreDepositsPercent" id="fsbw_BusinessCombinationConsiderationTransferredDepositPremiumForCoreDepositsPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BusinessCombinationConsiderationTransferredDepositPremiumForPublicFundsPercent" id="fsbw_BusinessCombinationConsiderationTransferredDepositPremiumForPublicFundsPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CustomerSwapPositionsMember" id="fsbw_CustomerSwapPositionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DealerOffsetsToCustomerSwapPositionsMember" id="fsbw_DealerOffsetsToCustomerSwapPositionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfBankOwnedBranchesAcquired" id="fsbw_NumberOfBankOwnedBranchesAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfRetailBankBranchesAcquired" id="fsbw_NumberOfRetailBankBranchesAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsInterestReceivables" id="fsbw_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsInterestReceivables" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNonInterestBearingDeposits" id="fsbw_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNonInterestBearingDeposits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInterestBearingDeposits" id="fsbw_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInterestBearingDeposits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedInterestPayable" id="fsbw_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedInterestPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="InterestRateSwapCounterpartiesMember" id="fsbw_InterestRateSwapCounterpartiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinancialInstrumentsOwnedCost" id="fsbw_FinancialInstrumentsOwnedCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FinancialInstrumentsOwnedAtAmortizedCost" id="fsbw_FinancialInstrumentsOwnedAtAmortizedCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FiniteLivedIntangibleAssetsAcquiredGross" id="fsbw_FiniteLivedIntangibleAssetsAcquiredGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FinancingReceivableModificationsContractualTerm" id="fsbw_FinancingReceivableModificationsContractualTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FinancingReceivableModificationsContractualInterestRate" id="fsbw_FinancingReceivableModificationsContractualInterestRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="FinancingReceivableModificationsPercentage" id="fsbw_FinancingReceivableModificationsPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfLoansAcquiredPurchasedFinancialAssetsWithCreditDeterioration" id="fsbw_NumberOfLoansAcquiredPurchasedFinancialAssetsWithCreditDeterioration" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfLoansExpectedToBeUncollectable" id="fsbw_NumberOfLoansExpectedToBeUncollectable" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="WorkforceAndCustomerRelationshipsMember" id="fsbw_WorkforceAndCustomerRelationshipsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AccountingStandardsUpdate202202Member" id="fsbw_AccountingStandardsUpdate202202Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff" id="fsbw_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff" id="fsbw_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff" id="fsbw_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff" id="fsbw_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FinancingReceivableExcludingAccruedInterestRevolvingWriteoff" id="fsbw_FinancingReceivableExcludingAccruedInterestRevolvingWriteoff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff" id="fsbw_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
</xsd:schema>
