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    <submissionType>N-CEN</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <filer>
        <issuerCredentials>
          <cik>0001012969</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>
      <flags>
        <returnCopyFlag>false</returnCopyFlag>
        <overrideInternetFlag>false</overrideInternetFlag>
        <confirmingCopyFlag>false</confirmingCopyFlag>
      </flags>
      <investmentCompanyType>N-4</investmentCompanyType>
    </filerInfo>
    <seriesClass>
      <reportClass>
        <rptIncludeAllClassesFlag>true</rptIncludeAllClassesFlag>
      </reportClass>
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  </headerData>
  <formData>
    <generalInfo reportEndingPeriod="2018-12-31" isReportPeriodLt12="N"/>
    <registrantInfo>
      <registrantFullName>JOHN HANCOCK LIFE INSURANCE Co (U.S.A.) SEPARATE ACCOUNT Q</registrantFullName>
      <investmentCompFileNo>811-07711</investmentCompFileNo>
      <registrantCik>0001012969</registrantCik>
      <registrantLei>549300STOUQEOLKMJL32</registrantLei>
      <registrantstreet1>200 Berkeley Street</registrantstreet1>
      <registrantcity>Boston</registrantcity>
      <registrantzipCode>02116-5010</registrantzipCode>
      <registrantstate>US-MA</registrantstate>
      <registrantcountry>US</registrantcountry>
      <registrantphoneNumber>6175726000</registrantphoneNumber>
      <websites>
        <website webpage="www.jhannuities.com"/>
      </websites>
      <locationBooksRecords>
        <locationBooksRecord>
          <officeName>Sarah Orlandella</officeName>
          <officeAddress1>200 Berkeley St.</officeAddress1>
          <officeCity>Boston</officeCity>
          <officeStateCountry officeState="US-MA" officeCountry="US"/>
          <officeRecordsZipCode>02116-5010</officeRecordsZipCode>
          <officePhone>6176632565</officePhone>
          <booksRecordsDesc>Separate Account Financial Statements</booksRecordsDesc>
        </locationBooksRecord>
      </locationBooksRecords>
      <isRegistrantFirstFiling>Y</isRegistrantFirstFiling>
      <isRegistrantLastFiling>N</isRegistrantLastFiling>
      <isRegistrantFamilyInvComp>N</isRegistrantFamilyInvComp>
      <registrantClassificationType>N-4</registrantClassificationType>
      <isSecuritiesActRegistration>Y</isSecuritiesActRegistration>
      <chiefComplianceOfficers>
        <chiefComplianceOfficer>
          <ccoName>Francis V. Knox, Jr.</ccoName>
          <crdNumber>001699647</crdNumber>
          <ccoStreet1>200 Berkeley St.</ccoStreet1>
          <ccoCity>Boston</ccoCity>
          <ccoStateCountry ccoState="US-MA" ccoCountry="US"/>
          <ccoZipCode>02116-5010</ccoZipCode>
          <ccoPhone>XXXXXX</ccoPhone>
          <isCcoChangedSinceLastFiling>N</isCcoChangedSinceLastFiling>
          <ccoEmployers>
            <ccoEmployer ccoEmployerName="N/A" ccoEmployerId="N/A"/>
          </ccoEmployers>
        </chiefComplianceOfficer>
      </chiefComplianceOfficers>
      <isRegistrantSubmittedMatter>N</isRegistrantSubmittedMatter>
      <isPreviousLegalProceeding>N</isPreviousLegalProceeding>
      <isPreviousProceedingTerminated>N</isPreviousProceedingTerminated>
      <isFinancialSupportDuringPeriod>N</isFinancialSupportDuringPeriod>
      <isExemptionFromAct>N</isExemptionFromAct>
      <principalUnderwriters>
        <principalUnderwriter>
          <principalUnderwriterName>John Hancock Distributors LLC</principalUnderwriterName>
          <principalUnderwriterFileNumber>8-15826</principalUnderwriterFileNumber>
          <principalUnderwriterCrdNumber>000005249</principalUnderwriterCrdNumber>
          <principalUnderwriterLei>N/A</principalUnderwriterLei>
          <principalUnderWriterStateCountry principalUnderWriterState="US-DE" principalUnderWriterCountry="US"/>
          <isPrincipalUnderwriterAffiliatedWithRegistrant>Y</isPrincipalUnderwriterAffiliatedWithRegistrant>
        </principalUnderwriter>
      </principalUnderwriters>
      <isUnderwriterHiredOrTerminated>N</isUnderwriterHiredOrTerminated>
      <publicAccountants>
        <publicAccountant>
          <publicAccountantName>Ernst &amp; Young LLP</publicAccountantName>
          <pcaobNumber>00042</pcaobNumber>
          <publicAccountantLei>N/A</publicAccountantLei>
          <publicAccountantStateCountry publicAccountantState="US-NY" publicAccountantCountry="US"/>
        </publicAccountant>
      </publicAccountants>
      <isPublicAccountantChanged>N</isPublicAccountantChanged>
      <isOpinionOffered>N</isOpinionOffered>
      <isMaterialChange>N</isMaterialChange>
      <isAccountingPrincipleChange>N</isAccountingPrincipleChange>
    </registrantInfo>
    <unitInvestmentTrust>
      <depositors>
        <depositor>
          <depositorName>John Hancock Life Insurance Company (U.S.A.)</depositorName>
          <depositorCrdNo>N/A</depositorCrdNo>
          <depositorLei>QQ0OZ8J9C4B5QT1XDG31</depositorLei>
          <depositorStateCountry depositorState="US-MI" depositorCountry="US"/>
          <depositorUltimateParentname>Manulife Financial Corporation</depositorUltimateParentname>
        </depositor>
      </depositors>
      <uitAdmins>
        <uitAdmin>
          <uitAdminName>State Street Bank</uitAdminName>
          <uitAdminLei>N/A</uitAdminLei>
          <uitAdminStateCountry uitAdminState="US-MA" uitAdminCountry="US"/>
          <isUitAdminAffiliated>N</isUitAdminAffiliated>
          <isUitAdminSubAdmin>N</isUitAdminSubAdmin>
        </uitAdmin>
      </uitAdmins>
      <isUitAdminHiredTerminated>N</isUitAdminHiredTerminated>
      <registrantSeparateInsuranceAccount isRegistrantSeparateInsuranceAccount="Y" separateAccountSeriesId="S000002861"/>
      <numOfContracts>6770</numOfContracts>
      <contractSecurities>
        <contractSecurity separateAccountSecurityName="Revolution Value Variable Annuity - JHLICO " separateAccountContractId="C000085948" separateAccountTotalAsset="221485618.000000000000" numContractsSold="0" grossPremiumReceived="4823141.000000000000" grossPremiumReceivedSection1035="93842.000000000000" numContractsAffected="2" contractValueRedeemed="51301317.000000000000" contractValueRedeemedSection1035="11114637.000000000000" numContractsAffectedRedeemed="119"/>
        <contractSecurity separateAccountSecurityName="Rev Value II - JHLICO" separateAccountContractId="C000085949" separateAccountTotalAsset="31642063.000000000000" numContractsSold="0" grossPremiumReceived="135004.000000000000" grossPremiumReceivedSection1035="0.000000000000" numContractsAffected="0" contractValueRedeemed="3914855.000000000000" contractValueRedeemedSection1035="1960831.000000000000" numContractsAffectedRedeemed="6"/>
        <contractSecurity separateAccountSecurityName="Wealth Builder - JHLICO" separateAccountContractId="C000085950" separateAccountTotalAsset="5054049.000000000000" numContractsSold="0" grossPremiumReceived="654460.000000000000" grossPremiumReceivedSection1035="0.000000000000" numContractsAffected="0" contractValueRedeemed="726591.000000000000" contractValueRedeemedSection1035="136266.000000000000" numContractsAffectedRedeemed="2"/>
        <contractSecurity separateAccountSecurityName="Declaration (NY) - JHLICO" separateAccountContractId="C000085924" separateAccountTotalAsset="8948482.000000000000" numContractsSold="0" grossPremiumReceived="313661.000000000000" grossPremiumReceivedSection1035="0.000000000000" numContractsAffected="0" contractValueRedeemed="226369.000000000000" contractValueRedeemedSection1035="37913.000000000000" numContractsAffectedRedeemed="1"/>
        <contractSecurity separateAccountSecurityName="Patriot (NY) - JHLICO" separateAccountContractId="C000085925" separateAccountTotalAsset="1614731.000000000000" numContractsSold="0" grossPremiumReceived="0.000000000000" grossPremiumReceivedSection1035="0.000000000000" numContractsAffected="0" contractValueRedeemed="162869.000000000000" contractValueRedeemedSection1035="0.000000000000" numContractsAffectedRedeemed="0"/>
        <contractSecurity separateAccountSecurityName="Rev Access - JHLICO" separateAccountContractId="C000085940" separateAccountTotalAsset="17362219.000000000000" numContractsSold="0" grossPremiumReceived="1360874.000000000000" grossPremiumReceivedSection1035="0.000000000000" numContractsAffected="0" contractValueRedeemed="1354018.000000000000" contractValueRedeemedSection1035="372372.000000000000" numContractsAffectedRedeemed="4"/>
        <contractSecurity separateAccountSecurityName="Rev Extra - JHLICO" separateAccountContractId="C000085941" separateAccountTotalAsset="42639456.000000000000" numContractsSold="0" grossPremiumReceived="724892.000000000000" grossPremiumReceivedSection1035="0.000000000000" numContractsAffected="0" contractValueRedeemed="3447487.000000000000" contractValueRedeemedSection1035="613365.000000000000" numContractsAffectedRedeemed="8"/>
        <contractSecurity separateAccountSecurityName="Rev Extra II - JHLICO" separateAccountContractId="C000085942" separateAccountTotalAsset="10573067.000000000000" numContractsSold="0" grossPremiumReceived="264083.000000000000" grossPremiumReceivedSection1035="0.000000000000" numContractsAffected="0" contractValueRedeemed="1381674.000000000000" contractValueRedeemedSection1035="343888.000000000000" numContractsAffectedRedeemed="4"/>
      </contractSecurities>
      <isRule6C7Reliance>Y</isRule6C7Reliance>
      <isRule11A2Reliance>N</isRule11A2Reliance>
    </unitInvestmentTrust>
    <signature registrantSignedName="JOHN HANCOCK LIFE INSURANCE Co (U.S.A.) SEPARATE ACCOUNT Q" signedDate="2019-03-13" signature="/s/ Sarah Orlandella, CPA" title="AVP Finance"/>
  </formData>
</edgarSubmission>
