CFS BANCORP, INC.

707 Ridge Road

Munster, Indiana  46321

July 11, 2011

VIA EDGAR

United States Securities and Exchange Commission

Division of Corporation Finance

100 F Street N.E.

Washington, D.C.  20549-3651

Attention:  Dave Irving, Staff Accountant

Re: CFS Bancorp, Inc.

File No. 000-24611

Form 10-K for the fiscal year ended December 31, 2010

Form 10-Q for the fiscal quarter ended March 31, 2011

Dear Mr. Irving:

This letter is to confirm the Staff’s agreement to extend until August 1, 2011 the time in which CFS Bancorp, Inc. will respond to the Staff’s July 1, 2011 comment letter with respect to the above-referenced filings.

Thank you very much for your consideration.

Very truly yours,

/s/ Jerry A. Weberling

Jerry A. Weberling

Executive Vice President and

Chief Financial Officer

cc:  Jennifer Durham King, Esq.

Vedder Price P.C.