Citizens Banking Corporation to Report 2005 First Quarter Earnings and

    Business Editors

    FLINT, Mich.--(BUSINESS WIRE)--April 7, 2005--Citizens Banking Corporation (NASDAQ:CBCF) will release its first quarter 2005 earnings results on Thursday, April 21, 2005. The release will be available on the Internet at www.citizensonline.com within the "Press Release" section of the "Investor Relations" area of Citizens' web site.
    William R. Hartman, chairman, president and CEO; Charles D. Christy, CFO; John D. Schwab, chief credit officer and Martin E. Grunst, treasurer will review the quarter's results in a conference call for investors and analysts beginning at 10:00am EST on Friday, April 22, 2005.
    A live audio web cast is available at http://www.vcall.com/CEPage.asp?ID=91356 To participate in the conference call, please call the number below approximately 10 minutes prior to the scheduled conference time: US/Canada Dial-In Number: (877) 407-8031 International Dial-In Number: (201) 689-8031 Conference ID: 00146639 Conference Name: "Citizens Banking Corporation 1st Quarter Earnings Conference Call" R.S.V.P. is not required.
    A playback of the conference call will be available after 12:00pm EST through May 6, 2005, by dialing US/Canada Dial-In Number: (877) 660-6853 or International Dial-In Number: (201) 612-7415, Account Number: 286, Conference ID: 146639. Also, the call can be accessed via Citizens' web site, through the Investor Relations section at www.citizensonline.com.

    Corporate Profile

    Citizens Banking Corporation is a diversified financial services company providing a full range of commercial, consumer, mortgage banking, trust and financial planning services to a broad client base. Citizens operates 181 branch, private banking, and financial center locations throughout Michigan, Wisconsin and Iowa.
    Visit our Web site at http://www.citizensonline.com

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CONTACT: Citizens Banking Corporation Kathleen O. Miller, 810-257-2506 (Investor Relations) Kathleen.Miller@cbcf-net.com

KEYWORD: WISCONSIN MINNESOTA MICHIGAN IOWA ILLINOIS INDUSTRY KEYWORD: BANKING EARNINGS CONFERENCE CALLS SOURCE: Citizens Banking Corporation

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