<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2023v5.0" xsi:schemaLocation="http://www.irs.gov/efile">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-05-14T16:54:35-07:00</ReturnTs>
    <TaxPeriodEndDt>2023-06-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>942590179</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>Maze &amp; Associates</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>3478 Buskirk Ave Ste 217</AddressLine1Txt>
        <CityNm>Pleasant Hill</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>94523</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-04-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>680487243</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>WALNUT CREEK CHAMBER FOUNDATION</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>WALN</BusinessNameControlTxt>
      <PhoneNum>9259342007</PhoneNum>
      <USAddress>
        <AddressLine1Txt>1280 CIVIC DRIVE 100</AddressLine1Txt>
        <CityNm>WALNUT CREEK</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>94596</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>BOB LINSCHEID</PersonNm>
      <PersonTitleTxt>President &amp; CEO</PersonTitleTxt>
      <SignatureDt>2024-05-14</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>BOB</PersonFirstNm>
        <PersonLastNm>LINSCHEID</PersonLastNm>
      </PersonFullName>
      <SSN>999009999</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>VIKKI C RODRIGUEZ</PreparerPersonNm>
      <PTIN>P00685455</PTIN>
      <PhoneNum>9252282800</PhoneNum>
    </PreparerPersonGrp>
    <AdditionalFilerInformation>
      <TrustedCustomerGrp>
        <TrustedCustomerCd>2</TrustedCustomerCd>
        <AuthenticationAssuranceLevelCd>AAL1</AuthenticationAssuranceLevelCd>
        <IdentityAssuranceLevelCd>IAL1</IdentityAssuranceLevelCd>
        <FederatedAssuranceLevelCd>FAL1</FederatedAssuranceLevelCd>
      </TrustedCustomerGrp>
    </AdditionalFilerInformation>
    <TaxYr>2023</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990EZ accountingPeriodChangeApprvCd="FORM 1128 WAS APPROVED" accountingPeriodChangeCd="CHANGE OF ACCOUNTING PERIOD" documentId="IRS990EZ" referenceDocumentId="IRS990ScheduleO TransfersPersonalBenefitsContr" softwareId="23017517" softwareVersionNum="2023v5.0">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>https://www.walnut-creek.com/foundation/</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="IRS990ScheduleA">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>61927</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ProgramServiceRevenueAmt>61927</ProgramServiceRevenueAmt>
      <CostOrOtherBasisExpenseSaleAmt>0</CostOrOtherBasisExpenseSaleAmt>
      <FundraisingGrossIncomeAmt>0</FundraisingGrossIncomeAmt>
      <SpecialEventsDirectExpensesAmt>0</SpecialEventsDirectExpensesAmt>
      <CostOfGoodsSoldAmt>0</CostOfGoodsSoldAmt>
      <TotalRevenueAmt>61927</TotalRevenueAmt>
      <FeesAndOtherPymtToIndCntrctAmt>14622</FeesAndOtherPymtToIndCntrctAmt>
      <PrintingPublicationsPostageAmt>327</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>58693</OtherExpensesTotalAmt>
      <TotalExpensesAmt>73642</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-11715</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>43308</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>31593</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>43308</BOYAmt>
        <EOYAmt>31593</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>43308</BOYAmt>
        <EOYAmt>31593</EOYAmt>
      </Form990TotalAssetsGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>43308</BOYAmt>
        <EOYAmt>31593</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <PrimaryExemptPurposeTxt>TO PROVIDE FUNDING, RESOURCES, AND OTHER SUPPORT FOR PROGRAMS DESIGNED TO FOSTER THE DEVELOPMENT OF LEADERS AND LEADERSHIP QUALITIES, INCLUDING BUT NOT LIMITED TO LEADERSHIP TRAINING AND MENTORSHIPS; AND TO PROVIDE LEADERSHIP RESOURCES TO NON-PROFIT GROUPS, PUBLIC OFFICES, AND OTHERS.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>PROGRAM LEADERSHIP:LEADERSHIP CONTRA COSTA WAS CREATED TO IDENTIFY AND PROMOTE THE SKILLS AS A CURRENT OR FUTURE LEADER, ENHANCE THE PARTICIPANT'S KNOWLEDGE OF THE CONTRA COSTA REGION, EXPAND INVOLVEMENT IN COMMUNITY AFFAIRS AND INCREASE COMMUNICATION AMONG THE MOST ACTIVE AND INVOLVED MEMBERS OF THIS COMMUNITY.</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>14208</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>EAST BAY WOMENS CONFERENCE:THE EAST BAY WOMEN'S CONFERENCE IS A PREMIER ONE-DAY CONFERENCE WITH THE MISSION TO INSPIRE AND EMPOWER WOMEN FROM ALL WALKS OF LIFE. THIS CONFERENCE INCLUDES PRESENTATIONS FROM INSPIRING KEYNOTE SPEAKERS, BOOK SIGNINGS, NETWORKING OPPORTUNITIES, AND SO MUCH MORE.</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>44205</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>EDUCATION INITIATIVES:EDUCATION INITIATIVES INCLUDE PARTNERSHIPS WITH HIGHER EDUCATION INSTITUTIONS AND INNOVATIVE GROWTH COMPANIES TO HELP UPSKILLING AND RETRAINING WORKFORCE. THE MAIN FOCUS IN THIS YEAR'S STRATEGIC PLAN IS GROWTH IN HEALTH CARE EMPLOYMENT.CONVERSATIONS BETWEEN BUSINESS AND HIGHER EDUCATION LEADERS INCLUDE: BRING EARLY EDUCATION ISSUES TO THE ATTENTION OF BUSINESS LEADERS AND ENCOURAGE INCREASED PARTICIPATION. WORK WITH LOCAL, STATE AND FEDERAL OFFICIALS TO DEVELOP PUBLIC POLICY THAT WILL INCREASE THE AMOUNT OF INVESTMENTS IN HIGH QUALITY EARLY EDUCATION. ENCOURAGE ALIGNMENT OF PRE-K (PRESCHOOL) -16 , DESIGN PROFESSIONAL DEVELOPMENT SYSTEMS THAT USE BOTH THE RESEARCH-BASED PRESCHOOL LEARNING FOUNDATIONS AND THE K-12 CONTENT STANDARDS.</DescriptionProgramSrvcAccomTxt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>ECONOMIC DEVELOPMENT:ECONOMIC DEVELOPMENT IS THE CREATION OF WEALTH IN WHICH COMMUNITY BENEFITS ARE CREATED. THERE ARE ONLY THREE APPROACHES USED TO ENHANCE LOCAL ECONOMIC DEVELOPMENT. THEY ARE: BUSINESS ATTRACTION, RETENTION AND EXPANSION - ENHANCING EXISTING BUSINESSES. THESE PROGRAMS ARE IN ASSOCIATION WITH THE CITY OF WALNUT CREEK IN THE DEVELOPMENT OF AN ECONOMIC DEVELOPMENT ACTION PLAN.THE ECONOMIC DEVELOPMENT ACTION PLAN INCLUDES DESIGNING, AND IMPLEMENTING ECONOMIC DEVELOPMENT STRATEGIES, AS WELL AS ACTING AS A KEY LIAISON BETWEEN PUBLIC AND PRIVATE SECTORS AND THE COMMUNITY.</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>607</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>59020</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>BOB LINSCHEID</PersonNm>
        <TitleTxt>President &amp; CEO</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>PEGGY WHITE</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ROBERT POWER</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DAWN LOPSHIRE</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ED DEL BECCARO</PersonNm>
        <TitleTxt>BOARD CHAIR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>LESLIE DAWSON</PersonNm>
        <TitleTxt>Treasurer</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MARGOT STANFORD</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MATT GUICHARD</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <TaxImposedUnderIRC4911Amt>0</TaxImposedUnderIRC4911Amt>
      <TaxImposedUnderIRC4912Amt>0</TaxImposedUnderIRC4912Amt>
      <TaxImposedUnderIRC4955Amt>0</TaxImposedUnderIRC4955Amt>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <TaxImposedOnOrganizationMgrAmt>0</TaxImposedOnOrganizationMgrAmt>
      <TaxReimbursedByOrganizationAmt>0</TaxReimbursedByOrganizationAmt>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <StatesWhereCopyOfReturnIsFldCd>CA</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <PersonNm>BOB LINSCHEID</PersonNm>
        <USAddress>
          <AddressLine1Txt>1280 CIVIC DRIVE 100</AddressLine1Txt>
          <CityNm>WALNUT CREEK</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94596</ZIPCd>
        </USAddress>
        <PhoneNum>9259342007</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>true</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="IRS990ScheduleA" softwareId="23017517" softwareVersionNum="2023v5.0">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus2YearsAmt>29024</CurrentTaxYearMinus2YearsAmt>
        <TotalAmt>29024</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TaxRevLeviedOrgnztnlBnft170Grp>
        <TotalAmt>0</TotalAmt>
      </TaxRevLeviedOrgnztnlBnft170Grp>
      <GovtFurnSrvcFcltsVl170Grp>
        <TotalAmt>0</TotalAmt>
      </GovtFurnSrvcFcltsVl170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus2YearsAmt>29024</CurrentTaxYearMinus2YearsAmt>
        <TotalAmt>29024</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>0</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>29024</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <TotalAmt>0</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <UnrelatedBusinessNetIncm170Grp>
        <TotalAmt>0</TotalAmt>
      </UnrelatedBusinessNetIncm170Grp>
      <OtherIncome170Grp>
        <TotalAmt>0</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>29024</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>292882</GrossReceiptsRltdActivitiesAmt>
      <First5Years170Ind>X</First5Years170Ind>
      <PublicSupportCY170Pct>0.00000</PublicSupportCY170Pct>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="23017517" softwareVersionNum="2023v5.0">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Expenses.1005</FormAndLineReferenceDesc>
        <ExplanationTxt>Travel $1218</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Expenses.1</FormAndLineReferenceDesc>
        <ExplanationTxt>SPEAKER &amp; VENUE $38113</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Expenses.2</FormAndLineReferenceDesc>
        <ExplanationTxt>PROGRAMMING COSTS $13189</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Expenses.3</FormAndLineReferenceDesc>
        <ExplanationTxt>OUTSIDE SERVICES $3692</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Expenses.4</FormAndLineReferenceDesc>
        <ExplanationTxt>SUPPORT FOR CHAMBER $2400</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Expenses.6</FormAndLineReferenceDesc>
        <ExplanationTxt>SUPPLIES $81</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Statement Note 1</FormAndLineReferenceDesc>
        <ExplanationTxt>PLEASE NOTE THAT THE ORGANIZATION IS ELECTING TO CHANGE ITS FISCAL YEAR END FROM A MARCH 31 YEAR-END TO A JUNE 30 YEAR-END, COMMENCING WITH JUNE 30, 2023. THEREFORE THE ATTACHED RETURN IS FOR THE STUB PERIOD OF APRIL 1, 2023 THROUGH JUNE 30, 2023.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
