content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001714465</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001552033</issuerCik>
        <issuerName>TransUnion</issuerName>
        <secFileNumber>001-37470</secFileNumber>
        <issuerAddress>
          <com:street1>555 WEST ADAMS STREET</com:street1>
          <com:city>CHICAGO</com:city>
          <com:stateOrCountry>IL</com:stateOrCountry>
          <com:zipCode>60661</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>(312) 985-2000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Cello Todd M</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>900 Salem Street</com:street1>
            <com:city>Smithfield</com:city>
            <com:stateOrCountry>RI</com:stateOrCountry>
            <com:zipCode>02917</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>12865</noOfUnitsSold>
        <aggregateMarketValue>1029200.00</aggregateMarketValue>
        <noOfUnitsOutstanding>194200000</noOfUnitsOutstanding>
        <approxSaleDate>07/12/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>06/25/2015</acquiredDate>
        <natureOfAcquisitionTransaction>IPO Shares</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>1000</amountOfSecuritiesAcquired>
        <paymentDate>06/25/2015</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/22/2017</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>1487</amountOfSecuritiesAcquired>
        <paymentDate>02/22/2017</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/15/2019</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2157</amountOfSecuritiesAcquired>
        <paymentDate>02/15/2019</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/19/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2572</amountOfSecuritiesAcquired>
        <paymentDate>02/19/2023</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/21/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>5649</amountOfSecuritiesAcquired>
        <paymentDate>02/21/2023</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>For the trade that occurred today , it was in the Todd M. Cello Trust account in which Todd Cello is a trustee and an account stakeholder.</remarks>
      <noticeSignature>
        <noticeDate>07/12/2024</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>03/13/2024</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Todd M Cello</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 5207}]
text: 144
  0001714465
  XXXXXXXX
  LIVE
  0001552033
  TransUnion
  001-37470
  555 WEST ADAMS STREET
  CHICAGO
  IL
  60661
  (312) 985-2000
  Cello Todd M
  Officer
  Common
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  12865
  1029200.00
  194200000
  07/12/2024
  NYSE
  Common
  06/25/2015
  IPO Shares
  Issuer
  N
  1000
  06/25/2015
  Cash
  Common
  02/22/2017
  Stock Option Exercise
  Issuer
  N
  1487
  02/22/2017
  Cash
  Common
  02/15/2019
  Restricted Stock Vesting
  Issuer
  N
  2157
  02/15/2019
  Compensation
  Common
  02/19/2023
  Restricted Stock Vesting
  Issuer
  N
  2572
  02/19/2023
  Compensation
  Common
  02/21/2023
  Restricted Stock Vesting
  Issuer
  N
  5649
  02/21/2023
  Compensation
  Y
  For the trade that occurred today , it was in the Todd M. Cello Trust account in which Todd Cello is a trustee and an account stakeholder.
  07/12/2024
  03/13/2024
  /s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Todd M Cello