LIMITED POWER OF ATTORNEY FOR
SECTION 16 REPORTING OBLIGATIONS

	 The
undersigned hereby constitutes and appoints WILLIAM J. WALSH, DOLORES L.
CODY, PATRICIA O'DONNELL and JAMES P. DWYER and each of them, to be the
undersigned's true and lawful attorney-in-fact for thirteen months from the
date hereof to:

	   (1)	execute for and on behalf of the undersigned a
Form 3 reflecting the undersigned's initial beneficial ownership of
Arbitron Inc. (the "Company") reportable on such form, including any
amendments to the Form 3; and

	   (2)	execute for and on behalf of the
undersigned any Form 144, Form 4 or Form 5 or any amendments to such forms
reporting any changes in the undersigned's beneficial ownership of the
Company's equity securities reportable on such form; and

	   (3)	do
and perform any and all acts for and on behalf of the undersigned which may
be necessary or desirable to complete or amend any such Form 3, Form 144,
Form 4 or Form 5 and to effect the timely filing of such form with the
United States Securities and Exchange Commission and any other authority;
and

	   (4)	execute for and on behalf of the undersigned any
registration statements on Form S-8 and any amendments (including
post-effective amendments) thereto relating to the Company's employee
benefit plans, provided that any registration statement or amendment in
final form is first reviewed by my attorney-in-fact; and his or her name,
when thus signed, shall have the same force and effect as though I had
manually signed the registration statement and/or amendment; and


(5)	take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit
to, in the best interest of, or legally required of, the undersigned, it
being understood that the documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Power of Attorney shall be in
such form and shall contain such terms and conditions as such
attorney-in-fact may approve in his discretion.

	   The undersigned
hereby grants to each such attorney-in-fact full power and authority to do
and perform all and every act and thing whatsoever necessary and proper to
be done in the exercise of any of the rights and powers herein granted,
with full power of substitution or revocation, hereby ratifying and
confirming all that such attorney-in-fact, or his substitute or
substitutes, shall lawfully do or cause to be done by virtue of this power
of attorney and the rights and powers herein granted.  The undersigned
hereby revokes any and all powers of attorney previously granted by the
undersigned relating to the subject matter of this Power of Attorney.


	   The undersigned has caused this Power of Attorney to be executed as
of this 17th day of August, 2004.


										   /s/ Luis G. Nogales

										   Luis G. Nogales