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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001225208-07-008295.txt : 20070911
<SEC-HEADER>0001225208-07-008295.hdr.sgml : 20070911
<ACCEPTANCE-DATETIME>20070911103804
ACCESSION NUMBER:		0001225208-07-008295
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20070910
FILED AS OF DATE:		20070911
DATE AS OF CHANGE:		20070911

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:		9739747849

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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SUMME GREGORY L
		CENTRAL INDEX KEY:			0001143422

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-05397
		FILM NUMBER:		071110291

	BUSINESS ADDRESS:	
		STREET 1:		C/O PERKIN ELMER CORP
		STREET 2:		45 WILLIAM ST
		CITY:			WELLESLEY
		STATE:			MA
		ZIP:			02481-4078
		BUSINESS PHONE:		781 663-5776

	MAIL ADDRESS:	
		STREET 1:		C/O PERKINELMER INC
		STREET 2:		940 WINTER STREET
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2007-09-10</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001143422</rptOwnerCik>
            <rptOwnerName>SUMME GREGORY L</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></nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks>poa-summe.TXT</remarks>

    <ownerSignature>
        <signatureName>James B. Benson (POA on file)</signatureName>
        <signatureDate>2007-09-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>poa-summe.txt
<TEXT>

                                                                      EXHIBIT 24
                                                                      ----------



                         AUTOMATIC DATA PROCESSING, INC.


                          Authorization and Designation
                                to Sign and File
                           Section 16 Reporting Forms


         The undersigned, GREGORY L. SUMME, a director of Automatic Data
Processing, Inc., a Delaware corporation (the "Company"), does hereby authorize
and designate JAMES B. BENSON 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 10th day of September, 2007.


                                             /s/ Gregory L. Summe
                                             ----------------------------------
                                             GREGORY L. SUMME


Sworn and subscribed to
before me this 10th day
of September, 2007.


/s/ Mary Bernadette Woods
- -------------------------------------
Mary Bernadette Woods
Notary Public of New Jersey
My Commission Expires Aug 29, 2011
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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