<SEC-DOCUMENT>0001225208-18-008060.txt : 20180426
<SEC-HEADER>0001225208-18-008060.hdr.sgml : 20180426
<ACCEPTANCE-DATETIME>20180426142113
ACCESSION NUMBER:		0001225208-18-008060
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20180418
FILED AS OF DATE:		20180426
DATE AS OF CHANGE:		20180426

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			POWERS SCOTT F
		CENTRAL INDEX KEY:			0001286771

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-05397
		FILM NUMBER:		18777842

	MAIL ADDRESS:	
		STREET 1:		STATE STREET CORPORATION
		STREET 2:		ONE LINCOLN STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02111

	FORMER NAME:	
		FORMER CONFORMED NAME:	POWERS SCOTT
		DATE OF NAME CHANGE:	20040412

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>3
<SEQUENCE>1
<FILENAME>doc3.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2018-04-18</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001286771</rptOwnerCik>
            <rptOwnerName>POWERS SCOTT F</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>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1450.0000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

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

    <ownerSignature>
        <signatureName>Michael A. Bonarti (POA on file)</signatureName>
        <signatureDate>2018-04-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>poa-powers.txt
<TEXT>

                                                                   EXHIBIT 24




                         AUTOMATIC DATA PROCESSING, INC.


                          Authorization and Designation
                                to Sign and File
                           Section 16 Reporting Forms


      The undersigned, SCOTT F. POWERS, a director of Automatic
Data Processing, Inc., a Delaware corporation (the "Company"),
does hereby authorize and designate MICHAEL A. BONARTI to sign
and file on my behalf any and all Forms 3, 4 and 5 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.

      IN WITNESS WHEREOF, the undersigned has executed this
Authorization and Designation this 23rd day of April, 2018.


                                       /s/ Scott F. Powers
                                    --------------------------
                                     SCOTT F. POWERS

</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
