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        <EOYAmt>407911</EOYAmt>
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      <FSAuditedInd>true</FSAuditedInd>
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        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
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      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
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    <IRS990ScheduleA documentId="RetDoc10">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>1535487</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>771457</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>939568</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1034594</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1100481</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus3YearsAmt>771457</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>939568</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1034594</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1100481</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus1YearAmt>30</CurrentTaxYearMinus1YearAmt>
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          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
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          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
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      <TotalLobbyingExpendGrp>
        <FilingOrganizationsTotalAmt>7586</FilingOrganizationsTotalAmt>
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      <OtherExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>1010866</FilingOrganizationsTotalAmt>
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      <TotalExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>1018452</FilingOrganizationsTotalAmt>
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      <LobbyingNontaxableAmountGrp>
        <FilingOrganizationsTotalAmt>176845</FilingOrganizationsTotalAmt>
      </LobbyingNontaxableAmountGrp>
      <GrassrootsNontaxableGrp>
        <FilingOrganizationsTotalAmt>44211</FilingOrganizationsTotalAmt>
      </GrassrootsNontaxableGrp>
      <AvgLobbyingNontaxableAmountGrp>
        <CurrentYearAmt>176845</CurrentYearAmt>
        <TotalAmt>176845</TotalAmt>
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      <LobbyingCeilingAmt>265268</LobbyingCeilingAmt>
      <AvgTotalLobbyingExpendGrp>
        <CurrentYearAmt>7586</CurrentYearAmt>
        <TotalAmt>7586</TotalAmt>
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      <AvgGrassrootsNontaxableGrp>
        <CurrentYearAmt>44211</CurrentYearAmt>
        <TotalAmt>44211</TotalAmt>
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      <GrassrootsCeilingAmt>66317</GrassrootsCeilingAmt>
      <AvgGrassrootsLobbyingExpendGrp>
        <CurrentYearAmt>6097</CurrentYearAmt>
        <TotalAmt>6097</TotalAmt>
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    <IRS990ScheduleD documentId="RetDoc7">
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        <OtherCostOrOtherBasisAmt>86273</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>67788</DepreciationAmt>
        <BookValueAmt>18485</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>18485</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>DEFERRED RENT</Desc>
        <Amt>21415</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>CAPITAL LEASE PAYABLE</Desc>
        <Amt>11534</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>32949</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
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      <DonatedServicesAndUseFcltsAmt>4307</DonatedServicesAndUseFcltsAmt>
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      <RevenueSubtotalAmt>1100504</RevenueSubtotalAmt>
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      <DonatedServicesUseFcltsAmt>4307</DonatedServicesUseFcltsAmt>
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      <ExpensesSubtotalAmt>1018452</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>1018452</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 3, PART X</FormAndLineReferenceDesc>
        <ExplanationTxt>SEVENTY IS EXEMPT FROM FEDERAL INCOME TAX UNDER IRC SECTION 501(A) AS AN ORGANIZATION DESCRIBED IN SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE. SINCE ITS INITIAL FILING FOR TAX-EXEMPT STATUS, SEVENTY HAS NOT RECEIVED ANY NOTICE FROM THE INTERNAL REVENUE SERVICE ("IRS") THAT SUCH TAX-EXEMPT STATUS HAS BEEN CHALLENGED OR CHANGED. THERE WAS NO TAXABLE INCOME DURING 2016; THEREFORE, NO PROVISION FOR INCOME TAXES HAS BEEN INCLUDED IN THE ACCOMPANYING FINANCIAL STATEMENTS. SEVENTY IS REQUIRED TO REPORT INFORMATION REGARDING ITS EXPOSURE TO VARIOUS TAX POSITIONS TAKEN. SEVENTY HAS DETERMINED WHETHER ANY TAX POSITIONS MET THE RECOGNITION THRESHOLD AND HAS MEASURED ITS EXPOSURE TO THOSE TAX POSITIONS. MANAGEMENT BELIEVES SEVENTY HAS ADEQUATELY ADDRESSED ALL RELEVANT TAX POSITIONS AND THERE ARE NO UNRECORDED TAX LIABILITIES. NO INTEREST OR PENALTIES FROM FEDERAL AND STATE TAX AUTHORITIES WERE RECORDED IN THE ACCOMPANYING FINANCIAL STATEMENTS. SEVENTY IS SUBJECT TO ROUTINE AUDITS BY TAXING JURISDICTIONS; HOWEVER, THERE ARE CURRENTLY NO AUDITS FOR ANY TAX PERIODS IN PROGRESS. SEVENTY BELIEVES IT IS NO LONGER SUBJECT TO INCOME TAX EXAMINATIONS FOR YEARS PRIOR TO 2013.</ExplanationTxt>
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      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>false</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DAVID THORNBURGH</PersonNm>
        <TitleTxt>PRES/CEO</TitleTxt>
        <BaseCompensationFilingOrgAmt>221450</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>31950</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>549</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>253949</TotalCompensationFilingOrgAmt>
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    <IRS990ScheduleO documentId="RetDoc9">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>COMMITTEE OF SEVENTY IS A NONPROFIT, NONPARTISAN, CIVIC ORGANIZATION DEDICATED TO MAKING GOVERNMENT WORK BETTER AND PHILADELPHIA A BETTER PLACE TO LIVE, WORK AND PLAY. SEVENTY EXISTS TO IMPROVE THE VOTING PROCESS AND OPEN UP OUR POLITICAL CULTURE. WE ENCOURAGE HONEST, CAPABLE PEOPLE TO SEEK PUBLIC OFFICE, AND TO HELP THEM MAKE IMPORTANT DECISIONS ABOUT PHILADELPHIA'S FUTURE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AUDIT COMMITTEE REVIEWS AND RECOMMENDS APPROVAL TO THE BOARD AND EXECUTIVE COMMITTEE. THE FULL BOARD RECEIVES A REVIEW COPY FOR COMMENT AND APPROVAL PRIOR TO FILING THE 990.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ANNUAL CONFLICTS OF INTEREST DISCLOSURES STATEMENTS ARE REQUIRED IN ACCORDANCE WITH SEVENTY'S CODE OF ETHICS AND CONFLICTS OF INTEREST POLICY FOR SEVENTY'S BOARD OF DIRECTORS. DIRECTORS ARE ALSO REQUIRED TO NOTIFY SEVENTY THROUGHOUT THE YEAR AS CONFLICTS ARISE. ANNUAL DISCLOSURE STATEMENTS ARE ON FILE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPENSATION COMMITTEE REVIEWS AND RECOMMENDS COMPENSATION FOR THE PRESIDENT &amp; CEO. THE PRESIDENT &amp; CEO REVIEWS AND RECOMMENDS COMPENSATION FOR OTHER SENIOR MANAGEMENT. BOTH ARE PRESENTED TO THE EXECUTIVE COMMITTEE FOR COMMENT AND APPROVAL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPENSATION COMMITTEE REVIEWS AND RECOMMENDS COMPENSATION FOR THE PRESIDENT &amp; CEO. THE PRESIDENT &amp; CEO REVIEWS AND RECOMMENDS COMPENSATION FOR OTHER SENIOR MANAGEMENT. BOTH ARE PRESENTED TO THE EXECUTIVE COMMITTEE FOR COMMENT AND APPROVAL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE GOVERNING DOCUMENTS AND FINANCIAL STATEMENTS ARE AVAILABLE UPON REQUEST. SEVENTY'S FORM 990S ARE AVAILABLE ON THE WEBSITE WWW.SEVENTY.ORG.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>SPECIAL EVENTS 79,172 9,314 4,657 FREELANCE TALENT 100,230 0 5,275 TOTAL 179,402 9,314 9,932</ExplanationTxt>
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    <AveragingAttachment documentId="RetDoc3">
      <ExplanationTxt>COMMITTEE OF SEVENTY HAS A VALID 501(H) ELECTION IN EFFECT AS OF JANUARY 1, 2013. IN 2016, THE ORGANIZATION INCURRED GRASS ROOT LOBBYING EXPENSE OF 6,097, AND DIRECT LOBBYING EXPENSE OF 1,489.</ExplanationTxt>
    </AveragingAttachment>
  </ReturnData>
</Return>