<SEC-DOCUMENT>0001225208-21-013811.txt : 20211112
<SEC-HEADER>0001225208-21-013811.hdr.sgml : 20211112
<ACCEPTANCE-DATETIME>20211112084328
ACCESSION NUMBER:		0001225208-21-013811
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20211110
FILED AS OF DATE:		20211112
DATE AS OF CHANGE:		20211112

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Haynesworth Linnie M
		CENTRAL INDEX KEY:			0001790292

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-05397
		FILM NUMBER:		211400061

	MAIL ADDRESS:	
		STREET 1:		214 N TRYON STREET
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28202

ISSUER:		

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

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-11-10</periodOfReport>

    <issuer>
        <issuerCik>0000008670</issuerCik>
        <issuerName>AUTOMATIC DATA PROCESSING INC</issuerName>
        <issuerTradingSymbol>ADP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001790292</rptOwnerCik>
            <rptOwnerName>Haynesworth Linnie M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE ADP BOULEVARD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ROSELAND</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07068</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-11-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1437.0000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.0000</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3240.0000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks>poa-haynesworth.txt</remarks>

    <ownerSignature>
        <signatureName>David Kwon (POA on File)</signatureName>
        <signatureDate>2021-11-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>poa-haynesworth.txt
<TEXT>

                                                                   EXHIBIT 24




                         AUTOMATIC DATA PROCESSING, INC.


                          Authorization and Designation
                                to Sign and File
                           Section 16 Reporting Forms


      The undersigned, LINNIE M. HAYNESWORTH, a director of Automatic Data
Processing, Inc., a Delaware corporation (the "Company"), does hereby
authorize and designate DAVID KWON, DOROTHY WISNIOWSKI and MICHAEL A. BONARTI
to sign and file on my behalf any and all Forms 3, 4, 5 and 144 relating to
equity securities of the Company pursuant to the requirements of Section 16
of the Securities Exchange Act of 1934 ("Section 16"). This authorization,
unless earlier revoked by the undersigned in writing, shall be valid until
the undersigned's reporting obligations under Section 16 with respect to
equity securities of the Company shall cease.


                                       /s/ Linnie M. Haynesworth
                                    ----------------------------
                                     LINNIE M. HAYNESWORTH


Date signed:  October 20, 2021
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
