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        <InstitutionalTrusteeInd>X</InstitutionalTrusteeInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ALEX DOBOLI</PersonNm>
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      <Form990PartVIISectionAGrp>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
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      <ProgramServiceRevenueGrp>
        <Desc>STUDENT TUITION</Desc>
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        <RelatedOrExemptFuncIncomeAmt>492403</RelatedOrExemptFuncIncomeAmt>
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      <CompCurrentOfcrDirectorsGrp>
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      <OtherEmployeeBenefitsGrp>
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      <AdvertisingGrp>
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      <InformationTechnologyGrp>
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      <PymtTravelEntrtnmntPubOfclGrp>
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        <ProgramServicesAmt>40906</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>103</ManagementAndGeneralAmt>
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      <InsuranceGrp>
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        <FundraisingAmt>27725</FundraisingAmt>
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        <FundraisingAmt>45683</FundraisingAmt>
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        <Desc>INSTRUCTIONAL EXPENSE</Desc>
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        <ProgramServicesAmt>127096</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>GENERAL SUMMER PROGRAMS</Desc>
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        <ProgramServicesAmt>114160</ProgramServicesAmt>
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        <TotalAmt>350630</TotalAmt>
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        <FundraisingAmt>7123</FundraisingAmt>
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      <TotalFunctionalExpensesGrp>
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        <ProgramServicesAmt>3553307</ProgramServicesAmt>
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        <EOYAmt>420367</EOYAmt>
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      <PledgesAndGrantsReceivableGrp>
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      <AccountsPayableAccrExpnssGrp>
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        <EOYAmt>418181</EOYAmt>
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        <EOYAmt>25000</EOYAmt>
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      <TotalLiabilitiesGrp>
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        <EOYAmt>1951091</EOYAmt>
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      <DonorRestrictionNetAssetsGrp>
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        <EOYAmt>8446533</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>10397624</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>14552</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>263389</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
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    <IRS990ScheduleA documentId="RetDoc1039100001">
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    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
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        <InvestmentEarningsOrLossesAmt>269613</InvestmentEarningsOrLossesAmt>
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        <EndYearBalanceAmt>3477278</EndYearBalanceAmt>
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        <EndYearBalanceAmt>3321261</EndYearBalanceAmt>
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      <CYMinus3YrEndwmtFundGrp>
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      <EndowmentsHeldRelatedOrgInd>0</EndowmentsHeldRelatedOrgInd>
      <LandGrp>
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        <BookValueAmt>124995</BookValueAmt>
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      <BuildingsGrp>
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        <DepreciationAmt>978587</DepreciationAmt>
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      <EquipmentGrp>
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        <DepreciationAmt>45474</DepreciationAmt>
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      </EquipmentGrp>
      <OtherLandBuildingsGrp>
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        <BookValueAmt>323221</BookValueAmt>
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      <OtherAssetsOrgGrp>
        <Desc>ERTC RECEIVABLE</Desc>
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      </OtherAssetsOrgGrp>
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      <OtherLiabilitiesOrgGrp>
        <Desc>ERTC CONSULTING FEE</Desc>
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      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>25000</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>4739018</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>263389</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>263389</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>4475629</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>4475629</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>4461077</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>4461077</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>4461077</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>HARBOR COUNTRY DAY SCHOOL HAS EVALUATED FOR UNCERTAIN TAX POSITION AND HAS DETERMINED THAT THERE ARE NO UNCERTAIN TAX POSITIONS FOR FISCAL 2023 AND 2022.</ExplanationTxt>
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      <PolicyStmtInBrochuresEtcInd>1</PolicyStmtInBrochuresEtcInd>
      <PlcyPblczdViaBroadcastMediaInd>1</PlcyPblczdViaBroadcastMediaInd>
      <MaintainRacialCompRecsInd>1</MaintainRacialCompRecsInd>
      <MaintainScholarshipsRecsInd>1</MaintainScholarshipsRecsInd>
      <MaintainCpyOfBrochuresEtcInd>1</MaintainCpyOfBrochuresEtcInd>
      <MaintainCpyOfAllSolInd>1</MaintainCpyOfAllSolInd>
      <DiscriminateRaceStdntsRghtsInd>0</DiscriminateRaceStdntsRghtsInd>
      <DiscriminateRaceAdmissPlcyInd>0</DiscriminateRaceAdmissPlcyInd>
      <DiscriminateRaceEmplmFcultyInd>0</DiscriminateRaceEmplmFcultyInd>
      <DiscriminateRaceSchsInd>0</DiscriminateRaceSchsInd>
      <DiscriminateRaceEducPlcyInd>0</DiscriminateRaceEducPlcyInd>
      <DiscriminateRaceUseOfFcltsInd>0</DiscriminateRaceUseOfFcltsInd>
      <DiscriminateRaceAthltProgInd>0</DiscriminateRaceAthltProgInd>
      <DiscriminateRaceOtherActyInd>0</DiscriminateRaceOtherActyInd>
      <GovernmentFinancialAidRcvdInd>0</GovernmentFinancialAidRcvdInd>
      <GovernmentFinancialAidRvkdInd>0</GovernmentFinancialAidRvkdInd>
      <ComplianceWithRevProc7550Ind>1</ComplianceWithRevProc7550Ind>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE E, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>FINANCIAL AID OR GOVERNMENT ASSISTANCE; NOT REVOKED OR SUSPENDED</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleE>
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      <EmailSolicitationsInd>X</EmailSolicitationsInd>
      <InPersonSolicitationsInd>X</InPersonSolicitationsInd>
      <SpecialFundraisingEventsInd>X</SpecialFundraisingEventsInd>
      <LicensedStatesCd>NY</LicensedStatesCd>
      <FundraisingEventInformationGrp>
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        <GrossReceiptsTotalAmt>200691</GrossReceiptsTotalAmt>
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        <GrossRevenueTotalEventsAmt>16656</GrossRevenueTotalEventsAmt>
        <NonCashPrizesTotalEventsAmt>16656</NonCashPrizesTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>16656</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>0</NetIncomeSummaryAmt>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS OF THE GOVERNING BODY ARE EXECUTIVES WITHIN THE ORGANIZATION. AS SUCH, THEY ARE NOT INDEPENDENT OF THE BOARD OF TRUSTEES AND DO NOT HAVE VOTING RIGHTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>ORGANIZATION'S PROCESS TO REVIEW FORM 990: COPY OF FORM 990 WAS PROVIDED TO THE FINANCE COMMITTEE OF THE GOVERNING BOARD BEFORE IT WAS FILED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ENFORCEMENT OF CONFLICTS POLICY: EACH YEAR MEMBERS SIGN CONFLICT OF INTEREST DISCLOSURE STATEMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE HEAD OF SCHOOL'S SALARY AND COMPENSATION IS DETERMINED BY THE BOARD OF DIRECTORS AND VOTED ON FOR APPROVAL. KEY EMPLOYEES RECEIVE A PERCENTAGE RAISE BASED ON BOARD APPROVAL, WITH THE FINANCE COMMITTEE'S RECOMMENDATIONS ANNUALLY. THE ENTIRE FACULTY AND STAFF'S SALARY IS BASED ON THE POOL AMOUNT OF INCREASE. THE HEAD OF SCHOOL WILL REVIEW ALL COMPENSATION BEFORE FINAL APPROVAL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS DISCLOSURE EXPLANATION: THE GOVERNING DOCUMENTS ARE AVAILABLE UPON REQUEST TO THE PUBLIC AT THE ORGANIZATION'S OFFICE, DURING NORMAL WORKING HOURS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FINANCIAL STATEMENTS ARE REVIEWED BY THE DIRECTOR OF FINANCE, THEN BY THE FINANCE COMMITTEE. AFTER THE FINANCE COMMITTEE APPROVES THEM, THEY ARE GIVEN TO THE BOARD OF DIRECTORS FOR ANY COMMENTS, QUESTIONS, OR CONCERNS. THEN THE AUDITORS PRESENT THE FINANCIAL STATEMENTS TO THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
