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      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0002015092</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001227654</issuerCik>
        <issuerName>COMPASS MINERALS INTERNATIONAL INC</issuerName>
        <secFileNumber>001-31921</secFileNumber>
        <issuerAddress>
          <com:street1>9900 W. 109TH STREET</com:street1>
          <com:street2>SUITE 100</com:street2>
          <com:city>OVERLAND PARK</com:city>
          <com:stateOrCountry>KS</com:stateOrCountry>
          <com:zipCode>66210</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>913-344-9200</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Hood Jennifer R.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Former Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>FIDELITY BROKERAGE SERVICES LLC</name>
          <address>
            <com:street1>245 Summer Street</com:street1>
            <com:city>BOSTON</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02110</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>1486</noOfUnitsSold>
        <aggregateMarketValue>28531.00</aggregateMarketValue>
        <noOfUnitsOutstanding>41620522</noOfUnitsOutstanding>
        <approxSaleDate>05/16/2025</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>01/13/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>170</amountOfSecuritiesAcquired>
        <paymentDate>01/13/2022</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>09/20/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>0</amountOfSecuritiesAcquired>
        <paymentDate>09/20/2022</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>11/14/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>117</amountOfSecuritiesAcquired>
        <paymentDate>11/14/2022</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>12/20/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Dividend</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>1</amountOfSecuritiesAcquired>
        <paymentDate>12/20/2022</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>01/13/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>648</amountOfSecuritiesAcquired>
        <paymentDate>01/13/2023</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/20/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Dividend</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>4</amountOfSecuritiesAcquired>
        <paymentDate>03/20/2023</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>04/27/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>512</amountOfSecuritiesAcquired>
        <paymentDate>04/27/2023</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>06/20/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Dividend</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>6</amountOfSecuritiesAcquired>
        <paymentDate>06/20/2023</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>09/20/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Dividend</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>8</amountOfSecuritiesAcquired>
        <paymentDate>09/20/2023</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>12/20/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Dividend</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>8</amountOfSecuritiesAcquired>
        <paymentDate>12/20/2023</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/20/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Dividend</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>12</amountOfSecuritiesAcquired>
        <paymentDate>03/20/2024</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>05/19/2025</noticeDate>
        <signature>/s/ Jordyn Davis as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for  Hood Jennifer R.</signature>
      </noticeSignature>
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metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 8032}]
text: 144
  0002015092
  XXXXXXXX
  LIVE
  0001227654
  COMPASS MINERALS INTERNATIONAL INC
  001-31921
  9900 W. 109TH STREET
  SUITE 100
  OVERLAND PARK
  KS
  66210
  913-344-9200
  Hood Jennifer R.
  Former Officer
  Common
  FIDELITY BROKERAGE SERVICES LLC
  245 Summer Street
  BOSTON
  MA
  02110
  1486
  28531.00
  41620522
  05/16/2025
  NYSE
  Common
  01/13/2022
  Stock Award
  ISSUER
  N
  170
  01/13/2022
  Compensation
  Common
  09/20/2022
  Stock Award
  ISSUER
  N
  0
  09/20/2022
  N/A
  Common
  11/14/2022
  Stock Award
  ISSUER
  N
  117
  11/14/2022
  Compensation
  Common
  12/20/2022
  Dividend
  ISSUER
  N
  1
  12/20/2022
  N/A
  Common
  01/13/2023
  Stock Award
  ISSUER
  N
  648
  01/13/2023
  Compensation
  Common
  03/20/2023
  Dividend
  ISSUER
  N
  4
  03/20/2023
  N/A
  Common
  04/27/2023
  Stock Award
  ISSUER
  N
  512
  04/27/2023
  Compensation
  Common
  06/20/2023
  Dividend
  ISSUER
  N
  6
  06/20/2023
  N/A
  Common
  09/20/2023
  Dividend
  ISSUER
  N
  8
  09/20/2023
  N/A
  Common
  12/20/2023
  Dividend
  ISSUER
  N
  8
  12/20/2023
  N/A
  Common
  03/20/2024
  Dividend
  ISSUER
  N
  12
  03/20/2024
  N/A
  Y
  05/19/2025
  /s/ Jordyn Davis as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for  Hood Jennifer R.