<SEC-DOCUMENT>0001959173-25-005651.txt : 20250902
<SEC-HEADER>0001959173-25-005651.hdr.sgml : 20250902
<ACCEPTANCE-DATETIME>20250902101242
ACCESSION NUMBER:		0001959173-25-005651
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250902
DATE AS OF CHANGE:		20250902

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AUTOMATIC DATA PROCESSING INC
		CENTRAL INDEX KEY:			0000008670
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
		ORGANIZATION NAME:           	06 Technology
		EIN:				221467904
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-05397
		FILM NUMBER:		251283431

	BUSINESS ADDRESS:	
		STREET 1:		ONE ADP BOULVARD
		CITY:			ROSELAND
		STATE:			NJ
		ZIP:			07068
		BUSINESS PHONE:		9739745000

	MAIL ADDRESS:	
		STREET 1:		ONE ADP BOULEVARD
		CITY:			ROSELAND
		STATE:			NJ
		ZIP:			07068

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Black Maria
		CENTRAL INDEX KEY:			0001608466
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		ONE ADP BOULEVARD
		CITY:			ROSELAND
		STATE:			NJ
		ZIP:			07068
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?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>0001608466</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000008670</issuerCik>
      <issuerName>AUTOMATIC DATA PROCESSING INC</issuerName>
      <secFileNumber>001-05397</secFileNumber>
      <issuerAddress>
        <com:street1>ONE ADP BOULVARD</com:street1>
        <com:city>ROSELAND</com:city>
        <com:stateOrCountry>NJ</com:stateOrCountry>
        <com:zipCode>07068</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>9739745000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Black Maria</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
        <relationshipToIssuer>Director</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>7721</noOfUnitsSold>
      <aggregateMarketValue>2328962.44</aggregateMarketValue>
      <noOfUnitsOutstanding>405043142</noOfUnitsOutstanding>
      <approxSaleDate>09/02/2025</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>09/02/2025</acquiredDate>
      <natureOfAcquisitionTransaction>Option Granted - 09/01/2021</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>7721</amountOfSecuritiesAcquired>
      <paymentDate>09/02/2025</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>09/02/2025</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>09/06/2024</planAdoptionDate>
      </planAdoptionDates>
      <signature>/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Maria Black</signature>
    </noticeSignature>
  </formData>
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