<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2023v4.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-02-20T07:05:04-00:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>021367832</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>Walter M Piecewicz</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>111 W Washington St</AddressLine1Txt>
        <CityNm>Chicago</CityNm>
        <StateAbbreviationCd>IL</StateAbbreviationCd>
        <ZIPCd>60602</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990PF</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>364326978</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>Chicago Society Foundation</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>CHIC</BusinessNameControlTxt>
      <PhoneNum>3122825367</PhoneNum>
      <USAddress>
        <AddressLine1Txt>111 West Washington Street STE 1110</AddressLine1Txt>
        <CityNm>Chicago</CityNm>
        <StateAbbreviationCd>IL</StateAbbreviationCd>
        <ZIPCd>60602</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Walter M Piecewicz</PersonNm>
      <PersonTitleTxt>Finance Committee Chairman</PersonTitleTxt>
      <PhoneNum>3122825367</PhoneNum>
      <SignatureDt>2024-02-20</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>Walter</PersonFirstNm>
        <PersonLastNm>Piecewicz</PersonLastNm>
      </PersonFullName>
      <SSN>XXX-XX-XXXX</SSN>
    </SigningOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>Walter M Piecewicz</PreparerPersonNm>
      <PTIN>P01433546</PTIN>
      <PhoneNum>3127265016</PhoneNum>
      <PreparationDt>2024-02-20</PreparationDt>
      <SelfEmployedInd>X</SelfEmployedInd>
    </PreparerPersonGrp>
    <AdditionalFilerInformation>
      <TrustedCustomerGrp>
        <TrustedCustomerCd>2</TrustedCustomerCd>
        <AuthenticationAssuranceLevelCd>AAL1</AuthenticationAssuranceLevelCd>
        <IdentityAssuranceLevelCd>IAL1</IdentityAssuranceLevelCd>
      </TrustedCustomerGrp>
    </AdditionalFilerInformation>
    <TaxYr>2023</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990PF documentId="990PF" softwareId="23017659" softwareVersionNum="23.1.0.0">
      <Organization501c3ExemptPFInd>X</Organization501c3ExemptPFInd>
      <FMVAssetsEOYAmt>937882</FMVAssetsEOYAmt>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <AnalysisOfRevenueAndExpenses>
        <DividendsRevAndExpnssAmt>31355</DividendsRevAndExpnssAmt>
        <DividendsNetInvstIncmAmt>31355</DividendsNetInvstIncmAmt>
        <DividendsAdjNetIncmAmt>31355</DividendsAdjNetIncmAmt>
        <CapGainNetIncmNetInvstIncmAmt>0</CapGainNetIncmNetInvstIncmAmt>
        <TotalRevAndExpnssAmt>31355</TotalRevAndExpnssAmt>
        <TotalNetInvstIncmAmt>31355</TotalNetInvstIncmAmt>
        <TotalAdjNetIncmAmt>31355</TotalAdjNetIncmAmt>
        <TravConfMeetingRevAndExpnssAmt>2787</TravConfMeetingRevAndExpnssAmt>
        <PrintingAndPubRevAndExpnssAmt>227</PrintingAndPubRevAndExpnssAmt>
        <OtherExpensesRevAndExpnssAmt referenceDocumentId="990PF:115">390</OtherExpensesRevAndExpnssAmt>
        <TotOprExpensesRevAndExpnssAmt>3404</TotOprExpensesRevAndExpnssAmt>
        <TotOprExpensesNetInvstIncmAmt>0</TotOprExpensesNetInvstIncmAmt>
        <TotOprExpensesDsbrsChrtblAmt>0</TotOprExpensesDsbrsChrtblAmt>
        <ContriPaidRevAndExpnssAmt>35000</ContriPaidRevAndExpnssAmt>
        <ContriPaidDsbrsChrtblAmt>35000</ContriPaidDsbrsChrtblAmt>
        <TotalExpensesRevAndExpnssAmt>38404</TotalExpensesRevAndExpnssAmt>
        <TotalExpensesNetInvstIncmAmt>0</TotalExpensesNetInvstIncmAmt>
        <TotalExpensesDsbrsChrtblAmt>35000</TotalExpensesDsbrsChrtblAmt>
        <ExcessRevenueOverExpensesAmt>-7049</ExcessRevenueOverExpensesAmt>
        <NetInvestmentIncomeAmt>31355</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>31355</AdjustedNetIncomeAmt>
      </AnalysisOfRevenueAndExpenses>
      <Form990PFBalanceSheetsGrp>
        <SavAndTempCashInvstBOYAmt>844430</SavAndTempCashInvstBOYAmt>
        <SavAndTempCashInvstEOYAmt>937882</SavAndTempCashInvstEOYAmt>
        <SavAndTempCashInvstEOYFMVAmt>937882</SavAndTempCashInvstEOYFMVAmt>
        <TotalAssetsBOYAmt>844430</TotalAssetsBOYAmt>
        <TotalAssetsEOYAmt>937882</TotalAssetsEOYAmt>
        <TotalAssetsEOYFMVAmt>937882</TotalAssetsEOYFMVAmt>
        <TotalLiabilitiesEOYAmt>0</TotalLiabilitiesEOYAmt>
        <OrgDoesNotFollowFASB117Ind>X</OrgDoesNotFollowFASB117Ind>
        <RetainedEarningBOYAmt>844430</RetainedEarningBOYAmt>
        <RetainedEarningEOYAmt>937882</RetainedEarningEOYAmt>
        <TotNetAstOrFundBalancesBOYAmt>844430</TotNetAstOrFundBalancesBOYAmt>
        <TotNetAstOrFundBalancesEOYAmt>937882</TotNetAstOrFundBalancesEOYAmt>
        <TotalLiabilitiesNetAstBOYAmt>844430</TotalLiabilitiesNetAstBOYAmt>
        <TotalLiabilitiesNetAstEOYAmt>937882</TotalLiabilitiesNetAstEOYAmt>
      </Form990PFBalanceSheetsGrp>
      <ChgInNetAssetsFundBalancesGrp>
        <TotNetAstOrFundBalancesBOYAmt>844430</TotNetAstOrFundBalancesBOYAmt>
        <ExcessRevenueOverExpensesAmt>-7049</ExcessRevenueOverExpensesAmt>
        <OtherIncreasesAmt referenceDocumentId="990PF:133">100501</OtherIncreasesAmt>
        <SubtotalAmt>937882</SubtotalAmt>
        <TotNetAstOrFundBalancesEOYAmt>937882</TotNetAstOrFundBalancesEOYAmt>
      </ChgInNetAssetsFundBalancesGrp>
      <ExciseTaxBasedOnInvstIncmGrp>
        <InvestmentIncomeExciseTaxAmt>436</InvestmentIncomeExciseTaxAmt>
        <SubtotalAmt>436</SubtotalAmt>
        <TaxBasedOnInvestmentIncomeAmt>436</TaxBasedOnInvestmentIncomeAmt>
        <TaxDueAmt>436</TaxDueAmt>
      </ExciseTaxBasedOnInvstIncmGrp>
      <StatementsRegardingActyGrp>
        <ChangesToArticlesOrBylawsInd>false</ChangesToArticlesOrBylawsInd>
        <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
        <AtLeast5000InAssetsInd>true</AtLeast5000InAssetsInd>
        <OrgReportOrRegisterStateCd>IL</OrgReportOrRegisterStateCd>
        <PrivateOperatingFoundationInd>false</PrivateOperatingFoundationInd>
        <NewSubstantialContributorsInd>false</NewSubstantialContributorsInd>
        <ComplyWithPublicInspRqrInd>true</ComplyWithPublicInspRqrInd>
        <WebsiteAddressTxt>www.chicagosocietypna.org</WebsiteAddressTxt>
        <IndividualWithBooksNm>Stanley Sawa</IndividualWithBooksNm>
        <PhoneNum>7085791823</PhoneNum>
        <LocationOfBooksUSAddress>
          <AddressLine1Txt>1805 Buckingham</AddressLine1Txt>
          <CityNm>Westchester</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60154</ZIPCd>
        </LocationOfBooksUSAddress>
        <ForeignAccountsQuestionInd>false</ForeignAccountsQuestionInd>
      </StatementsRegardingActyGrp>
      <StatementsRegardingActy4720Grp>
        <SaleOrExchDisqualifiedPrsnInd>false</SaleOrExchDisqualifiedPrsnInd>
        <BrrwOrLendDisqualifiedPrsnInd>false</BrrwOrLendDisqualifiedPrsnInd>
        <FurnGoodsDisqualifiedPrsnInd>false</FurnGoodsDisqualifiedPrsnInd>
        <PayCompDisqualifiedPrsnInd>false</PayCompDisqualifiedPrsnInd>
        <TransferAstDisqualifiedPrsnInd>false</TransferAstDisqualifiedPrsnInd>
        <PaymentToGovernmentOfficialInd>false</PaymentToGovernmentOfficialInd>
        <UncorrectedPriorActsInd>false</UncorrectedPriorActsInd>
        <UndistributedIncomePYInd>false</UndistributedIncomePYInd>
        <BusinessHoldingsInd>false</BusinessHoldingsInd>
        <JeopardyInvestmentsInd>false</JeopardyInvestmentsInd>
        <UncorrectedPYJeopardyInvstInd>false</UncorrectedPYJeopardyInvstInd>
        <InfluenceLegislationInd>false</InfluenceLegislationInd>
        <InfluenceElectionInd>false</InfluenceElectionInd>
        <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
        <NoncharitablePurposeInd>false</NoncharitablePurposeInd>
        <RcvFndsToPayPrsnlBnftCntrctInd>false</RcvFndsToPayPrsnlBnftCntrctInd>
        <PayPremiumsPrsnlBnftCntrctInd>false</PayPremiumsPrsnlBnftCntrctInd>
        <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
        <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      </StatementsRegardingActy4720Grp>
      <OfficerDirTrstKeyEmplInfoGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>Peter Dykas</PersonNm>
          <USAddress>
            <AddressLine1Txt>1325 Lois Avenue</AddressLine1Txt>
            <CityNm>Park Ridge</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>60068</ZIPCd>
          </USAddress>
          <TitleTxt>President</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>002.00</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>Stanley Sawa</PersonNm>
          <USAddress>
            <AddressLine1Txt>1805 Buckingham</AddressLine1Txt>
            <CityNm>Westchester</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>60154</ZIPCd>
          </USAddress>
          <TitleTxt>Treasurer</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>002.00</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>Richard Ciesla</PersonNm>
          <USAddress>
            <AddressLine1Txt>1808 Weeg Way</AddressLine1Txt>
            <CityNm>Park Ridge</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>60068</ZIPCd>
          </USAddress>
          <TitleTxt>Secretary</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>002.00</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
        </OfficerDirTrstKeyEmplGrp>
        <CompOfHghstPdEmplOrNONETxt>NONE</CompOfHghstPdEmplOrNONETxt>
        <CompOfHghstPdCntrctOrNONETxt>NONE</CompOfHghstPdCntrctOrNONETxt>
      </OfficerDirTrstKeyEmplInfoGrp>
      <SummaryOfDirectChrtblActyGrp>
        <Description1Txt>Needy student scholarship awards</Description1Txt>
        <Expenses1Amt>22500</Expenses1Amt>
        <Description2Txt>Polish American related charitable grants to organizations</Description2Txt>
        <Expenses2Amt>12500</Expenses2Amt>
      </SummaryOfDirectChrtblActyGrp>
      <SumOfProgramRelatedInvstGrp>
        <Description1Txt>Scholarship program</Description1Txt>
        <Expenses1Amt>508015</Expenses1Amt>
        <Description2Txt>Miscellaneous Polish American charitable, cultural and educational organizations</Description2Txt>
        <Expenses2Amt>429000</Expenses2Amt>
        <TotalAmt>937015</TotalAmt>
      </SumOfProgramRelatedInvstGrp>
      <DistributableAmountGrp>
        <TaxBasedOnInvestmentIncomeAmt>436</TaxBasedOnInvestmentIncomeAmt>
        <TotalTaxAmt>436</TotalTaxAmt>
        <DistributableAsAdjustedAmt>0</DistributableAsAdjustedAmt>
      </DistributableAmountGrp>
      <PFQualifyingDistributionsGrp>
        <ExpensesAndContributionsAmt referenceDocumentId="990PF:151">35000</ExpensesAndContributionsAmt>
        <ProgramRelatedInvstTotalAmt>937015</ProgramRelatedInvstTotalAmt>
        <QualifyingDistributionsAmt>972015</QualifyingDistributionsAmt>
      </PFQualifyingDistributionsGrp>
      <UndistributedIncomeGrp>
        <DistributableAsAdjustedAmt>0</DistributableAsAdjustedAmt>
        <ExcessDistributionCyovYr2Amt>1073500</ExcessDistributionCyovYr2Amt>
        <ExcessDistributionCyovYr1Amt>904013</ExcessDistributionCyovYr1Amt>
        <TotalExcessDistributionCyovAmt>1977513</TotalExcessDistributionCyovAmt>
        <QualifyingDistributionsAmt>972015</QualifyingDistributionsAmt>
        <RemainingDistriFromCorpusAmt>972015</RemainingDistriFromCorpusAmt>
        <TotalCorpusAmt>2949528</TotalCorpusAmt>
        <UndistributedIncomeCYAmt>0</UndistributedIncomeCYAmt>
        <ExcessDistriCyovToNextYrAmt>2949528</ExcessDistriCyovToNextYrAmt>
        <ExcessFromYear2Amt>1073500</ExcessFromYear2Amt>
        <ExcessFromYear1Amt>904013</ExcessFromYear1Amt>
        <ExcessFromCurrentYearAmt>972015</ExcessFromCurrentYearAmt>
      </UndistributedIncomeGrp>
      <SupplementaryInformationGrp>
        <OnlyContriToPreselectedInd>X</OnlyContriToPreselectedInd>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>Legion of Young Polish Women</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>6100 N Cicero Avenue</AddressLine1Txt>
            <CityNm>Chicago</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>60646</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>none</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>general grant for char activities</GrantOrContributionPurposeTxt>
          <Amt>5000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>Morton Arboretum</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>4100 IL Route 53</AddressLine1Txt>
            <CityNm>Lisle</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>60532</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>none</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>Of the Earth Exhibition</GrantOrContributionPurposeTxt>
          <Amt>5000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>Polish Museum of America</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>984 N Milwaukee Avenue</AddressLine1Txt>
            <CityNm>Chicago</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>60642</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>none</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>Summer ball fundraiser</GrantOrContributionPurposeTxt>
          <Amt>2500</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientPersonNm>Kulze Scholarship awards for Needy</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>111 W Washington St</AddressLine1Txt>
            <CityNm>Chicago</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>60602</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>none</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>I</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>Financial need scholarships</GrantOrContributionPurposeTxt>
          <Amt>22500</Amt>
        </GrantOrContributionPdDurYrGrp>
        <TotalGrantOrContriPdDurYrAmt>35000</TotalGrantOrContriPdDurYrAmt>
      </SupplementaryInformationGrp>
      <AnalysisIncomeProducingActyGrp>
        <DividendsAndInterestFromSecDtl>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>31355</ExclusionAmt>
        </DividendsAndInterestFromSecDtl>
        <SubtotalsIncmProducingActyGrp>
          <ExclusionAmt>31355</ExclusionAmt>
        </SubtotalsIncmProducingActyGrp>
        <TotalIncomeProducingActyAmt>31355</TotalIncomeProducingActyAmt>
      </AnalysisIncomeProducingActyGrp>
      <TrnsfrTransRlnNonchrtblEOGrp>
        <TrnsfrOfCashToNonchrtblEOInd>false</TrnsfrOfCashToNonchrtblEOInd>
        <TrnsfrOtherAssetNonchrtblEOInd>false</TrnsfrOtherAssetNonchrtblEOInd>
        <SalesOrExchangesOfAssetsInd>false</SalesOrExchangesOfAssetsInd>
        <PurchaseOfAssetsNonchrtblEOInd>false</PurchaseOfAssetsNonchrtblEOInd>
        <RentalOfFacilitiesOthAssetsInd>false</RentalOfFacilitiesOthAssetsInd>
        <ReimbursementArrangementsInd>false</ReimbursementArrangementsInd>
        <LoansOrLoanGuaranteesInd>false</LoansOrLoanGuaranteesInd>
        <PerformanceOfServicesEtcInd>false</PerformanceOfServicesEtcInd>
        <SharingOfFacilitiesEtcInd>false</SharingOfFacilitiesEtcInd>
        <RelationshipsNonchrtblEOInd>false</RelationshipsNonchrtblEOInd>
      </TrnsfrTransRlnNonchrtblEOGrp>
    </IRS990PF>
    <AccountingFeesSchedule documentId="990PF:112" softwareId="23017659" softwareVersionNum="23.1.0.0"></AccountingFeesSchedule>
    <OtherAssetsSchedule documentId="990PF:117" softwareId="23017659" softwareVersionNum="23.1.0.0"></OtherAssetsSchedule>
    <OtherExpensesSchedule documentId="990PF:115" softwareId="23017659" softwareVersionNum="23.1.0.0">
      <OtherExpensesScheduleGrp>
        <Desc>Insurance</Desc>
        <RevenueAndExpensesPerBooksAmt>359</RevenueAndExpensesPerBooksAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>administrative</Desc>
        <RevenueAndExpensesPerBooksAmt>31</RevenueAndExpensesPerBooksAmt>
      </OtherExpensesScheduleGrp>
    </OtherExpensesSchedule>
    <OtherIncreasesSchedule documentId="990PF:133" softwareId="23017659" softwareVersionNum="23.1.0.0">
      <OtherIncreasesDetail>
        <Desc>Equity appreciation</Desc>
        <Amt>100501</Amt>
      </OtherIncreasesDetail>
    </OtherIncreasesSchedule>
  </ReturnData>
</Return>
