UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-K

[x]   Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange
Act of 1934 For the fiscal year ended December 31, 2002.

                                       or

[ ]   Transition Report Pursuant to Section 13 or 15(d) of the Securities
Exchange Act of 1934 For the transition period from              to
                                                    ------------    ------------

Commission file Number 000-10535

                          CITIZENS BANKING CORPORATION
              ---------------------------------------------------
             (Exact name of Registrant as specified in its charter)

             MICHIGAN                                           38-2378932
- ------------------------------------------                ---------------------
  (State or Other Jurisdiction of                           (I.R.S. Employer
  Incorporation or Organization)                            Identification No.)

  328 S. Saginaw Street, Flint, Michigan                          48502
- ------------------------------------------                ---------------------
 (Address of Principal Executive Offices)                         (ZIP Code)

Registrant's telephone number, including area code: (810) 766-7500

Securities registered pursuant to Section 12(b) of the Act: none

Securities registered pursuant to Section 12(g)
of the Act:                                     Common Stock, no par value
                                                Preferred Stock Purchase Rights


Indicate by check mark whether the Registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the Registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days.
Yes  X     No
    ---      ----

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of Registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ ]

Indicate by check mark whether the Registrant is an accelerated filer (as
defined in Rule 12b-2 of the Act).

Yes  X     No
    ---       ----

The aggregate market value of the voting common stock held by non-affiliates of
the Registrant as of June 28, 2002 was $1,260,719,708.

The number of shares outstanding of the Registrant's no par value Common Stock
as of March 14, 2003 was 43,298,093.

                       DOCUMENTS INCORPORATED BY REFERENCE
Portions of Citizens Banking Corporation's 2002 Annual Report to Shareholders
are incorporated by reference into Part I and II of this Annual Report on Form
10-K. Portions of Citizens Banking Corporation's Proxy Statement for its annual
meeting of shareholders to be held April 15, 2003 are incorporated by reference
into Part III of this Annual Report on Form 10-K.







                          CITIZENS BANKING CORPORATION

                         2002 ANNUAL REPORT ON FORM 10-K



                                TABLE OF CONTENTS



                                                                                                          Page
                                                                                                          ----
PART I
                                                                                                     
   Item 1.     Business .................................................................................    3
   Item 2.     Properties ...............................................................................   11
   Item 3.     Legal Proceedings ........................................................................   11
   Item 4.     Submission of Matters to a Vote of Security Holders ......................................   11

PART II
   Item 5.     Market for the Registrant's Common Equity and Related Stockholder Matters ................   12
   Item 6.     Selected Financial Data ..................................................................   13
   Item 7.     Management's Discussion and Analysis of Financial Condition and Results of Operations ....   13
   Item 7A.    Quantitative and Qualitative Disclosures about Market Risk ...............................   13
   Item 8.     Financial Statements and Supplementary Data ..............................................   13
   Item 9.     Changes in and Disagreements with Accountants on Accounting and Financial Disclosure......   13

PART III
   Item 10.    Directors and Executive Officers of the Registrant .......................................   14
   Item 11.    Executive Compensation ...................................................................   14
   Item 12.    Security Ownership of Certain Beneficial Owners and Management ...........................   14
   Item 13.    Certain Relationships and Related Transactions ...........................................   14
   Item 14     Controls and Procedures...................................................................   14

PART IV
   Item 15.    Exhibits, Financial Statement Schedules, and Reports on Form 8-K .........................   15

SIGNATURES     ..........................................................................................   16

CERTIFICATIONS ..........................................................................................   18

EXHIBIT INDEX  ..........................................................................................   20





                                       2






                                     PART I
- --------------------------------------------------------------------------------

ITEM 1.  BUSINESS

Unless the context indicates otherwise, all references in this Form 10-K to
"Citizens," the "Company," "our," "us" and "we" refer to Citizens Banking
Corporation and its subsidiaries. Our common stock is traded on the National
Market tier of the Nasdaq Stock Market under the symbol "CBCF." Our principal
executive offices are located at 328 South Saginaw Street, Flint, Michigan
48502, and our telephone number is (810) 766-7500. We maintain an internet
website at www.citizensonline.com where our Annual Report on Form 10-K,
Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and all amendments
to those reports are available without charge, as soon as reasonably practicable
after we file each such report with, or furnish it to, the U.S. Securities and
Exchange Commission. The information in our website does not constitute a part
of this Form 10-K.

GENERAL
Citizens Banking Corporation, incorporated in the State of Michigan in 1980, is
a diversified banking and financial services company that is registered as a
bank holding company under the Bank Holding Company Act of 1956, as amended. We
provide a full range of banking and financial services to individuals and
businesses through our Citizens Bank and F&M Bank subsidiaries. We also provide
wealth management services, primarily through CB Wealth Management, N.A. We
operate in the following three major business segments:

- -     Business Banking - Business Banking provides a full range of credit and
      related financial services to a wide range of middle-market corporate,
      small business, government and leasing clients. Products and services
      offered include commercial loans, commercial mortgages, small business
      loans, letters of credit, deposit accounts, cash management and
      international trade services. We extend credit to clients within the
      commercial, commercial mortgage, real estate construction and lease
      financing categories.
- -     Consumer Banking - Consumer Banking includes consumer lending and deposit
      gathering, electronic banking and residential mortgage loan origination
      and servicing. This line of business offers a variety of retail financial
      products and services including deposit accounts, direct and indirect
      installment loans, debit and credit cards, home equity lines of credit,
      residential mortgage loans, fixed and variable annuities and ATM network
      services. Consumer loans are primarily composed of automobile, personal,
      marine, recreational vehicle, home equity and credit card loans.
- -     Wealth Management - Wealth Management provides services to both our
      business and consumer clients. Private banking focuses on high net-worth
      customers and offers a broad array of asset management, estate settlement
      and administration, deposit and credit products. Trust and investment
      services include personal trust and planning services, investment
      management services, estate settlement and administration services and
      investment advisory services for the Golden Oak family of mutual funds,
      which we distribute through our banking offices. Retirement plan services
      focus on investment management and fiduciary activities with special
      emphasis on 401(k) plans. The brokerage and insurance businesses deliver
      retail mutual funds, other securities, variable and fixed annuities,
      personal disability and life insurance products and discounted brokerage
      services.

As of December 31, 2002, we had 2,520 full-time equivalent employees and
conducted our operations primarily through 188 banking offices, 208 ATM
locations and 28 brokerage centers located in Michigan, Wisconsin, Iowa and
Illinois. In Michigan, the primary market includes much of the central and
southern parts of the state. In Wisconsin, the primary market area is the Fox
Valley region, extending from Green Bay to Appleton to Oshkosh, as well as
northeastern and southwestern Wisconsin. Other market areas are central Iowa and
the western suburban market of Chicago, Illinois. Many of our offices are
located in small cities and rural areas that have diverse economies and a mix of
manufacturing, service, retailing and agricultural businesses. In many of these
localities, we are the largest bank, which we believe to be a competitive
advantage.


                                       3



At December 31, 2002 we directly or indirectly owned the following subsidiaries:



- -----------------------------------------------------------------------------------------------------------------------
                                                                                          Total            Date
                                                  Principal             Number of         Assets         Acquired /
               Subsidiary                          Office               Offices       (in millions)     Established
- -----------------------------------------------------------------------------------------------------------------------
                                                                                             
Citizens Bank (a)                                 Flint, MI                122            $5,071.0        01/01/82
Citizens Bank -- Illinois, N.A.                   Berwyn, IL                 3               219.4        05/01/87
F&M Bancorporation, Inc                          Kaukauna, WI                                             11/01/99
   F&M Bank -- Wisconsin (a)                     Kaukauna, WI               52             1,813.7        01/03/00
   F&M Bank -- Iowa (a)                        Marshalltown, IA             11               485.5        11/01/99
CB Wealth Management, N.A.                        Flint, MI                (b)               (b)          03/01/02
- -----------------------------------------------------------------------------------------------------------------------



(a)  Consolidated totals of the Bank include its non-bank subsidiaries.

(b)  CB Wealth Management conducts business at most Citizens Bank locations and
     had total assets under administration of $2.555 billion at December 31,
     2002.

Citizens Bank, our principal bank subsidiary, directly owned the following
non-bank subsidiaries:

     -   CB Financial Services, Inc. (100% owned) -- a seller of life insurance
         and annuity products to clients subject to certain restrictions,
     -   Citizens Bank Mortgage Company, LLC (99% owned) -- a provider of
         mortgage financing and servicing to individuals and businesses,
     -   Citizens Title Services, Inc. (100% owned) -- an issuer of title
         insurance to buyers and sellers of residential and commercial mortgage
         properties including those occurring due to loan refinancing,
     -   Citizens Commercial Leasing Corporation (100% owned) -- a participant
         in high quality indirect lease participations,
     -   Citizens Service Company, Inc (100% owned) -- a holding company owning
         1% of Citizens Bank Consumer Finance, LLC and 1% of Citizens Bank
         Mortgage Company, LLC.
     -   Citizens Bank Consumer Finance, LLC (99% owned) -- a partnership
         established to provide indirect consumer lending services to clients in
         Citizens' markets
     -   CB Capital Management, Inc. (100% owned) -- a registered broker-dealer
         for our Golden Oak mutual funds.

F&M Bank -- Wisconsin directly owned Pulaski Capital Corporation, a wholly owned
nonbank subsidiary organized and existing under the laws of the State of Nevada
that holds and manages the majority of F&M Bank -- Wisconsin's investment
portfolio. F&M Bank -- Iowa directly owned Security Bancservices, Inc, a wholly
owned non-bank subsidiary that sells property and casualty insurance to clients
in the Wisconsin and Iowa markets.

During 2002, we identified a number of strategic initiatives and took certain
key actions to strengthen our franchise. These initiatives and actions are
described on pages 28 and 29 of Exhibit 13 under the caption "Strategic
Initiatives and Other Key Actions" and are incorporated herein by reference.

PRINCIPAL SOURCES OF REVENUE
The primary source of our revenue is interest income. The table below shows the
amount of our total consolidated revenues resulting from interest and fees on
loans, interest and dividends on investment securities and other interest and
noninterest income for each of the last three years:



                                                                                Year Ended December 31,
                                                                 ---------------------------------------------------
(in thousands)                                                      2002                 2001                 2000
- --------------------------------------------------------------------------------------------------------------------
                                                                                                
Interest and fees on loans                                        $ 385,812           $ 492,437            $ 535,235
Interest and dividends on investment securities                      76,748              79,348              $86,540
Other interest and noninterest income                               102,600             119,255               90,577
                                                                -----------         -----------          -----------

     Total revenues                                               $ 565,160           $ 691,040            $ 712,352
                                                                ===========         ===========          ===========









LINES OF BUSINESS
Our performance is monitored by an internal profitability measurement system
that provides line of business results and key performance measures. Prior to
2002, we operated along the following business lines: Commercial Banking, Retail
Banking, Financial Services, F&M, and Other. Beginning in 2002, the F&M business
line was integrated into our other lines of business and the three major
business lines were renamed Business Banking, Consumer Banking and Wealth
Management, respectively. The activities of the renamed business lines remained
the same. Additional information regarding our business lines is incorporated
herein by reference from Exhibit 13 on pages 38 and 39, and on pages 83 through
85 of such document under the captions, "Line of Business Results" and "Note 19.
Lines of Business", respectively.

COMPETITION
The financial services industry is highly competitive. Our banking subsidiaries
compete with other commercial banks, many of which are subsidiaries of other
bank holding companies, for loans, deposits, trust accounts and other business
on the basis of interest rates, fees, convenience and quality of service. They
also actively compete with a variety of other financial service organizations
including savings associations, finance companies, mortgage banking companies,
brokerage firms, credit unions and other organizations. The non-banking
subsidiaries compete with other companies in related industries including other
leasing companies, title insurance companies, mortgage banking companies,
insurance companies, consumer finance companies and other organizations.

Mergers between financial institutions and the expansion of financial
institutions both within and outside of our primary Midwest banking markets have
provided significant competitive pressure in those markets. In addition, the
passage of Federal interstate banking legislation has expanded the banking
market and heightened competitive forces. The effect of this legislation is
further discussed under the caption "Supervision and Regulation".

Many of our offices are located in small cities and rural areas that have
diverse economies and a mix of manufacturing, service, retailing and
agricultural businesses. In many of these localities, we are the largest bank,
which we believe to be a competitive advantage. In other markets our competitors
may enjoy a competitive advantage, including greater financial resources, more
aggressive marketing campaigns, better brand recognition and more branch
locations. Our competitors may also offer higher interest rates than we do,
which could decrease the deposits that we attract or require us to increase our
rates or attract new deposits.

Other factors such as employee relations and environmental laws also impact our
competitiveness. We maintain a favorable relationship with our employees and
none of our employees are represented by a collective bargaining group. The
impact of environmental laws is further discussed in "Item 3. Legal Proceedings"
of this document.

SUPERVISION AND REGULATION
General
We are a bank holding company registered with the Federal Reserve Board and are
subject to regulation under the Bank Holding Company Act of 1956, as amended
(the "Bank Holding Company Act"). The Bank Holding Company Act requires the
Federal Reserve Board's prior approval of an acquisition of assets or of
ownership or control of voting shares of any bank or bank holding company if the
acquisition would give us more than 5% of the voting shares of that bank or bank
holding company. It also imposes restrictions, summarized below, on the assets
or voting shares of non-banking companies that we may acquire.

Our subsidiary banks are subject to the provisions of the banking laws of their
respective states or the National Bank Act. They are under the supervision of,
and are subject to periodic examination by, their respective state banking
departments (in the case of state-chartered banks) or the Office of the
Comptroller of the Currency ("OCC") (in the case of national banks), and are
subject to the rules and regulations of the OCC, the Federal Reserve Board and
the Federal Deposit Insurance Corporation ("FDIC"). Citizens Bank (our principal
bank subsidiary), F&M Bank-Wisconsin and F&M Bank-Iowa are state-chartered banks
and are therefore subject to supervision, regulation and examination by the
Michigan Office of Financial and Insurance Services, the Wisconsin Department of
Financial Institutions and the Iowa Division of Banking, respectively, as well
as by the Federal Reserve Board. Citizens Bank-Illinois, N.A., is a national
bank and CB Wealth Management, N.A., is a national, non-depository trust bank
and are subject to supervision, regulation and examination by the OCC. All of
our depository banks are subject to supervision and examination by the FDIC,
because the FDIC insures their deposits to the extent provided by law. In
addition, all of our banks are members of the Federal

                                       5







Reserve System. Our non-bank subsidiaries are supervised and examined by the
Federal Reserve Board and various other federal and state agencies.

Consistent with the requirements of the Bank Holding Company Act, our only lines
of business consist of providing our customers with banking, trust and other
financial services and products. These services include commercial banking
through our four subsidiary banks, trust services through CB Wealth Management,
N.A., mortgage origination and servicing through Citizens Bank Mortgage Company,
LLC, equipment leasing through Citizens Commercial Leasing Corporation,
brokerage and investment advisory services through CB Capital Management, Inc.,
property and casualty insurance brokerage services through Security
Bancservices, Inc., life insurance and annuity products through CB Financial
Services, Inc., title insurance through Citizens Title Services, Inc. and
portfolio management services for the majority of F&M Bank -- Wisconsin's
investment portfolio through Pulaski Capital Corporation. Commercial banking
activities account for substantially all of our gross revenues.

Regulations governing Citizens and our subsidiary depository institutions
restrict extensions of credit by such institutions to Citizens and, with some
exceptions, our other affiliates. For these purposes, extensions of credit
include loans and advances to and guarantees and letters of credit on behalf of
Citizens and such affiliates. These regulations also restrict investments by our
depository institution subsidiaries in the stock or other securities of Citizens
and the covered affiliates, as well as the acceptance of such stock or other
securities as collateral for loans to any borrower, whether or not related to
Citizens.

Our insured depository institution subsidiaries are subject to comprehensive
federal and state regulations dealing with a wide variety of subjects, including
capital and reserve requirements, loan limitations, restrictions as to interest
rates on loans and deposits, restrictions as to dividend payments, requirements
governing the establishment of branches and numerous other aspects of their
operations. These regulations generally have been adopted to protect depositors
and creditors rather than shareholders or holders of subordinated debt.
Information concerning capital adequacy guidelines for Citizens and its banking
subsidiaries including our regulatory capital position at December 31, 2002 and
maintenance of minimum average reserve balances by the banking subsidiaries with
the Federal Reserve Bank are incorporated herein by reference from Exhibit 13 on
page 51 of such document under the captions, "Capital Resources" and "Liquidity
and Debt Capacity," and pages 85 through 86 of such document under the caption
"Note 20 Regulatory Matters."

Our insured depository institution subsidiaries are also subject to
cross-guaranty liability under federal law. This means that if one FDIC-insured
depository institution subsidiary of a multi-institution bank holding company
fails or requires FDIC assistance, the FDIC may assess "commonly controlled"
depository institutions for the estimated losses suffered by the FDIC. Such
liability could have a material adverse effect on the financial condition of any
assessed subsidiary institution and on Citizens as the common parent. While the
FDIC's cross-guaranty claim is generally junior to the claims of depositors,
holders of secured liabilities, general creditors and subordinated creditors, it
is generally superior to the claims of shareholders and affiliates.

Under Federal Reserve Board policy, a bank holding company is expected to serve
as a source of financial strength to each of its subsidiary banks and to stand
prepared to commit resources to support each of them. There are no specific
quantitative rules on the holding company's potential liability. If one of our
subsidiary banks were to encounter financial difficulty, the Federal Reserve
Board could invoke the doctrine and require a capital contribution from us. In
addition, and as a separate legal matter, a holding company is required to
guarantee the capital plan of an undercapitalized subsidiary bank. See "FDICIA"
below.

Payment of Dividends
There are various statutory restrictions on the ability of our banking
subsidiaries to pay dividends or make other payments to Citizens' parent
company, which are described below. Because of these statutory dividend
constraints and our net loss in the third quarter of 2002 due to the large loan
loss provision and restructuring and other charges recorded, our banking
subsidiaries are expected to be unable to pay significant dividends to us during
the first half of 2003 without prior regulatory approval. We expect that the
dividend paying capacity of our bank subsidiaries will return to historical
levels by the fourth quarter of 2003, although there can be no assurance to that
effect. In each of the years ended December 31, 2000, 2001 and 2002, our
subsidiaries paid cash dividends to us of $79.4 million, $107.4 million and
$90.5 million, respectively.


                                       6





Each of our banking subsidiaries is subject to dividend limits under the laws of
the state in which it is chartered. In addition, all of our subsidiary banks are
member banks of the Federal Reserve System, subject to the dividend limits of
the Federal Reserve Board. The Federal Reserve Board allows a member bank to
make dividends or other capital distributions in an amount not exceeding the
current calendar year's net income, plus retained net income of the preceding
two years. Distributions in excess of this limit require prior approval of the
Federal Reserve Board. Federal Reserve Board policy provides that, as a matter
of prudent banking, a bank holding company generally should not maintain a rate
of cash dividends unless its net income available to common shareholders has
been sufficient to fully fund the dividends, and the prospective rate of
earnings retention appears to be consistent with the holding company's capital
needs, asset quality and overall financial condition.

Dividends from a national banking association may be declared only from the
bank's undivided profits, and until the bank's surplus fund equals its common
capital, no dividends may be declared unless at least 10% of the bank's net
income for a given time period has been carried to the surplus fund, depending
on the frequency of dividend payments in a given year. The OCC's approval is
required if the total of all dividends declared in any calendar year exceeds the
sum of the association's net income of that year combined with its retained net
income of the preceding two years.

FDICIA
The Federal Deposit Insurance Corporation Improvement Act of 1991 ("FDICIA")
requires federal regulators to take prompt corrective action against any
undercapitalized institution. FDICIA establishes five capital categories:
well-capitalized, adequately capitalized, undercapitalized, significantly
undercapitalized and critically undercapitalized. "Well capitalized"
institutions significantly exceed the required minimum level for each capital
measure (currently, risk-based and leverage). "Adequately capitalized"
institutions include depository institutions that meet the required minimum
level for each capital measure. "Undercapitalized" institutions consist of those
that fail to meet the required minimum level for one or more relevant capital
measures. "Significantly undercapitalized" characterizes depository institutions
with capital levels significantly below the minimum requirements. "Critically
undercapitalized" refers to depository institutions with minimal capital and at
serious risk for government seizure.

Under certain circumstances, a well-capitalized, adequately capitalized or
undercapitalized institution may be treated as if the institution were in the
next lower capital category. A depository institution is generally prohibited
from making capital distributions, including paying dividends, or paying
management fees to a holding company if the institution would thereafter be
undercapitalized. Institutions that are adequately but not well capitalized
cannot accept, renew or rollover brokered deposits except with a waiver from the
FDIC and are subject to restrictions on the interest rates that can be paid on
such deposits. Undercapitalized institutions may not accept, renew or rollover
brokered deposits.

The banking regulatory agencies are permitted or, in certain cases, required to
take certain actions with respect to institutions falling within one of the
three undercapitalized categories. Depending on the level of an institution's
capital, the agency's corrective powers include, among other things:

- -    prohibiting the payment of principal and interest on subordinated debt;
- -    prohibiting the holding company from making distributions without prior
     regulatory approval;
- -    placing limits on asset growth and restrictions on activities;
- -    placing additional restrictions on transactions with affiliates;
- -    restricting the interest rate the institution may pay on deposits;
- -    prohibiting the institution from accepting deposits from correspondent
     banks; and
- -    in the most severe cases, appointing a conservator or receiver for the
     institution.

A banking institution that is undercapitalized is required to submit a capital
restoration plan, and such a plan will not be accepted unless, among other
things, the banking institution's holding company guarantees the plan up to a
certain specified amount. Any such guarantee from a depository institution's
holding company is entitled to a priority of payment in bankruptcy.

FDICIA also contains a variety of other provisions that may affect our
operations, including reporting requirements, regulatory standards for real
estate lending, "truth in savings" provisions, the requirement that a depository
institution give 90 days prior notice to customers and regulatory authorities
before closing any branch.


                                       7





At December 31, 2002 and 2001, the most recent notification from the Federal
Reserve Board categorized Citizens and all of its depository institution
subsidiaries as "well capitalized" under the regulatory framework for prompt
corrective action.

FDIC Insurance Assessments
The FDIC's deposit insurance assessments currently are calculated under a
risk-based system. The risk-based system places a bank in one of nine risk
categories, principally on the basis of its capital level and an evaluation of
the bank's risk to the relevant deposit insurance fund, and bases premiums on
the probability of loss to the FDIC with respect to each individual bank. Under
the Federal Deposit Insurance Act, depository institutions such as our
subsidiary banks may not pay interest on indebtedness, if such interest is
required to be paid out of net profits, or distribute any of its capital assets
while it remains in default on any assessment due to the FDIC.

The adjusted assessment rates for FDIC-insured institutions currently range from
0.00% to 0.27% depending on the assessment category into which a bank is placed.
We did not pay any regular insurance assessments to the FDIC in 2002 and do not
expect to be required to pay significant insurance assessments in 2003. However,
the FDIC retains the ability to increase regular insurance assessments and to
levy special additional assessments.

Interstate Banking
Under the Riegle-Neal Interstate Banking and Branching Efficiency Act of 1994,
as amended ("Riegle-Neal Act"), a bank holding company may acquire banks in
states other than its home state, subject to any state requirement that the bank
has been organized and operating for a minimum period of time (not to exceed
five years) and the requirement that the bank holding company not control, prior
to or following the proposed acquisition, more than 10% of the total amount of
deposits of insured depository institutions nationwide or, unless the
acquisition is the bank holding company's initial entry into the state, more
than 30% of such deposits in the state, or such lesser or greater amount set by
the state. The Riegle-Neal Act also authorizes banks to merge across state
lines, thereby creating interstate branches. Banks are also permitted to acquire
and to establish de novo branches in other states where authorized under the
laws of those states.

Transactions with Affiliates
Transactions between our subsidiary banks and their affiliates are governed by
Sections 23A and 23B of the Federal Reserve Act. The affiliates of our banks
include Citizens and any entity controlled by Citizens. Generally, Sections 23A
and 23B (i) limit the extent to which our subsidiary banks may engage in
"covered transactions" with any one affiliate to an amount equal to 10% of our
capital stock and surplus, and maintain an aggregate limit on all such
transactions with affiliates to an amount equal to 20% of the bank's capital
stock and surplus, (ii) require that a bank's extensions of credit to such
affiliates be fully collateralized (with 100% to 130% collateral coverage,
depending on the type of collateral), (iii) prohibit the bank from purchasing or
accepting as collateral from an affiliate any "low quality assets" (including
non-performing loans) and (iv) require that all "covered transactions" be on
terms substantially the same, or at least as favorable, to the bank or its
subsidiary as those provided to a non-affiliate. The term "covered transaction"
includes the making of loans, purchase of assets, issuance of a guarantee and
other type of similar transactions.

Loans to Insiders
The Federal Reserve Act and related regulations impose specific restrictions on
loans to directors, executive officers and principal stockholders of banks.
Under Section 22(h) of the Federal Reserve Act and its implementing regulations,
loans to a director, an executive officer and to a principal stockholder of a
bank, and some affiliated entities of any of the foregoing, may not exceed,
together with all other outstanding loans to such person and affiliated
entities, the bank's loan-to-one-borrower limit. Loans in the aggregate to
insiders and their related interests as a class may not exceed the bank's
unimpaired capital and unimpaired surplus. Section 22(h) and its implementing
regulations also prohibit loans, above amounts prescribed by the appropriate
federal banking agency, to directors, executive officers and principal
stockholders of a bank or bank holding company, and their respective affiliates,
unless such loan is approved in advance by a majority of the board of directors
of the bank with any "interested" director not participating in the voting.
Section 22(h) generally requires that loans to directors, executive officers and
principal stockholders be made on terms and underwriting standards substantially
the same as offered in comparable transactions to other persons.

Community Reinvestment Act
Under the Community Reinvestment Act and related regulations, depository
institutions have an affirmative obligation to assist in meeting the credit
needs of their market areas, including low and moderate income areas, consistent
with safe and sound banking practice. The Community Reinvestment Act requires
the adoption by each



                                       8





institution of a Community Reinvestment Act statement for each of its market
areas describing the depository institution's efforts to assist in its
community's credit needs. Depository institutions are periodically examined for
compliance with the Community Reinvestment Act and are periodically assigned
ratings in this regard. Banking regulators consider a depository institution's
Community Reinvestment Act rating when reviewing applications to establish new
branches, undertake new lines of business, and/or acquire part or all of another
depository institution. An unsatisfactory rating can significantly delay or even
prohibit regulatory approval of a proposed transaction by a bank holding company
or its depository institution subsidiary.

Fair Lending; Consumer Laws
In addition to the Community Reinvestment Act, other federal and state laws
regulate various lending and consumer aspects of the banking business.
Governmental agencies, including the Department of Housing and Urban
Development, the Federal Trade Commission and the Department of Justice, have
become concerned that in some cases prospective borrowers experience unlawful
discrimination in their efforts to obtain loans from depository and other
lending institutions. These agencies have brought litigation against some
depository institutions alleging discrimination against borrowers. Many of these
suits have been settled, in some cases for material sums, short of a full trial.

Recently, these governmental agencies have clarified what they consider to be
lending discrimination and have specified various factors that they will use to
determine the existence of lending discrimination under the Equal Credit
Opportunity Act and the Fair Housing Act. These factors include evidence that a
lender discriminated on a prohibited basis, evidence that a lender treated
applicants differently based on prohibited factors in the absence of evidence
that the treatment was the result of prejudice or a conscious intention to
discriminate, and evidence that a lender applied an otherwise neutral
non-discriminatory policy uniformly to all applicants, but the practice had a
discriminatory effect, unless the practice could be justified as a business
necessity.

Banks and other depository institutions also are subject to numerous
consumer-oriented laws and regulations. These laws, which include the Truth in
Lending Act, the Truth in Savings Act, the Real Estate Settlement Procedures
Act, the Electronic Funds Transfer Act, the Equal Credit Opportunity Act, and
the Fair Housing Act, require compliance by depository institutions with various
disclosure requirements and requirements regulating the availability of funds
after deposit or the making of certain loan, to customers.

Gramm-Leach-Bliley Act of 1999
The Gramm-Leach-Bliley Act of 1999 (the "GLBA") was signed into law on November
12, 1999. The GLBA covers a broad range of issues, including a repeal of most of
the restrictions on affiliations among depository institutions, securities firms
and insurance companies. The following description summarizes some of its
significant provisions.

The GLBA repeals sections 20 and 32 of the Glass-Steagall Act, thus permitting
unrestricted affiliations between banks and securities firms. It also permits
bank holding companies to elect to become financial holding companies. A
financial holding company may engage in or acquire companies that engage in a
broad range of financial services, including securities activities such as
underwriting, dealing, investment, merchant banking, insurance underwriting,
sales and brokerage activities. In order to become a financial holding company,
the bank holding company and all of its affiliated depository institutions must
be well-capitalized, well-managed and have at least a satisfactory Community
Reinvestment Act rating. We have determined not to become certified as a
financial holding company at this time. We may reconsider this determination in
the future.

The GLBA provides that the states continue to have the authority to regulate
insurance activities, but prohibits the states in most instances from preventing
or significantly interfering with the ability of a bank, directly or through an
affiliate, to engage in insurance sales, solicitations or cross-marketing
activities. Although the states generally must regulate bank insurance
activities in a nondiscriminatory manner, the states may continue to adopt and
enforce rules that specifically regulate bank insurance activities in specific
areas identified under the law. Under the new law, the federal bank regulatory
agencies adopted insurance consumer protection regulations that apply to sales
practices, solicitations, advertising and disclosures.

The GLBA repeals the broad exemption of banks from the definitions of "broker"
and "dealer" for purposes of the Securities Exchange Act of 1934, as amended. It
also identifies a set of specific activities, including traditional bank trust
and fiduciary activities, in which a bank may engage without being deemed a
"broker," and a set of activities in which a bank may engage without being
deemed a "dealer." Additionally, the new law makes conforming changes in

                                       9




the definitions of "broker" and "dealer" for purposes of the Investment Company
Act of 1940, as amended, and the Investment Advisers Act of 1940, as amended.

The GLBA also contains extensive customer privacy protection provisions. Under
these provisions, a financial institution must provide to its customers, both at
the inception of the customer relationship and on an annual basis, the
institution's policies and procedures regarding the handling of customers'
nonpublic personal financial information. The new law provides that, except for
specific limited exceptions, an institution may not provide such personal
information to unaffiliated third parties unless the institution discloses to
the customer that such information may be so provided and the customer is given
the opportunity to "opt out" of such disclosure. An institution may not disclose
to a non-affiliated third party, other than to a consumer reporting agency,
customer account numbers or other similar account identifiers for marketing
purposes. The GLBA also provides that the states may adopt customer privacy
protections that are more strict than those contained in the GLBA.

Future Legislation
Because federal and state regulation of financial institutions changes regularly
and is the subject of constant legislative debate, we cannot forecast how
federal and state regulation of financial institutions may change in the future
and impact our operations. Although Congress in recent years has sought to
reduce the regulatory burden on financial institutions with respect to the
approval of specific transactions, we fully expect that the financial services
industry will remain heavily regulated in the near future and that additional
laws or regulations may be adopted further regulating specific banking
practices.

ECONOMIC FACTORS AND MONETARY POLICY
Our earnings and business are affected by the general economic and political
conditions in the United States and abroad and by the monetary and fiscal
policies of various federal regulatory authorities, including the Federal
Reserve System. Through open market securities transactions, variations in the
Federal Funds rate and the establishment of reserve requirements, the Board of
Governors of the Federal Reserve System exerts considerable influence on
interest rates and the supply of money and credit. The effect of fluctuating
economic conditions and federal regulatory policies on our future profitability
cannot be predicted with any certainty. The effect of the economy and changes in
the Federal Funds rate on our net interest margin and net interest income in
2001 and 2002 and their potential affect on future periods is discussed in
Exhibit 13 on pages 31 through 34 under the caption "Net Interest Income" and is
incorporated herein by reference. Our sensitivity to changes in interest rates
and the potential effect of changes in interest rates on net interest income is
presented in Exhibit 13 on pages 52 through 54 under the captions "Interest Rate
Risk" and "Interest Rate Sensitivity" and is incorporated herein by reference.

ENVIRONMENTAL MATTERS
Our primary exposure to environmental risk is through our trust services and our
lending activities. In each instance, we have policies and procedures in place
to mitigate our environmental risk exposures. With respect to lending
activities, we require environmental site assessments at the time of loan
origination to confirm collateral quality on commercial real estate parcels
posing higher than normal potential for environmental impact, as determined by
reference to present and past uses of the subject property and adjacent sites.
Environmental assessments are also mandated prior to any foreclosure activity
involving non-residential real estate collateral. In the case of trust services,
we utilize various types of environmental transaction screening to identify
actual and potential risks arising from any proposed holding of non-residential
real estate for trust accounts. Consequently we do not anticipate any material
effect on capital expenditures, earnings or the competitive position of Citizens
or any of our subsidiaries with regard to compliance with federal, state or
local environmental protection laws or regulations. Additional information is
provided in "Item 3. Legal Proceedings."



                                       10





ITEM 2.  PROPERTIES
Our offices are located at 328 South Saginaw Street, Flint, Michigan in the main
office building of Citizens Bank, our largest bank subsidiary. Our bank
subsidiaries operate through 188 branch and financial banking offices. Of these,
44 are leased and the remainder are owned and not subject to any material liens.
Rent expense on the leased properties totaled $2,170,476 in 2002. The banking
offices are located in various communities throughout the states of Michigan and
Wisconsin, in parts of Iowa and in the western suburbs of Chicago, Illinois. At
certain Citizens Bank locations a portion of the office buildings are leased to
tenants. Additional information related to the property and equipment owned or
leased by Citizens and its subsidiaries is incorporated herein by reference from
Exhibit 13 on page 71 under the caption "Note 9. Premises and Equipment" of such
document.

ITEM 3.  LEGAL PROCEEDINGS
Citizens and its subsidiaries are parties to a number of lawsuits incidental to
its business. Although litigation is subject to many uncertainties and the
ultimate exposure with respect to many of these matters cannot be ascertained,
we do not believe the ultimate outcome of these matters will have a material
adverse effect on our financial condition or liquidity.

From time to time, certain of our subsidiaries are notified by applicable
environmental regulatory agencies, pursuant to State or Federal environmental
statutes or regulations, that they may be potentially responsible parties
("PRPs") for environmental contamination on or emanating from properties
currently or formerly owned. Typically, exact costs of remediating the
contamination cannot be fully determined at the time of initial notification.
While, as PRPs, these subsidiaries are potentially liable for the costs of
remediation, in most cases, a number of other PRPs have been identified as being
jointly and severally liable for remediation costs. Additionally, in certain
cases, statutory defenses to liability for remediation costs may be asserted
based on the subsidiaries' status as lending institutions that acquired
ownership of the contaminated property through foreclosure. We are not presently
aware of any environmental liabilities that pose a reasonable possibility of
future material impact on Citizens or its earnings. It is our policy to
establish and accrue appropriate reserves for all such identified exposures
during the accounting period in which a loss is deemed to be probable and the
amount is determinable.


ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
No matters were submitted during the fourth quarter of 2002 to a vote of
security holders through the solicitation of proxies or otherwise.



                                       11


                                     PART II
- --------------------------------------------------------------------------------

ITEM 5.  MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED SHAREHOLDER'S MATTERS

Our common stock is traded on the National Market tier of the Nasdaq Stock
Market under the symbol "CBCF." Information regarding our stock prices during
the last two years is incorporated herein by reference from Exhibit 13 on page
55 under the caption "Table 14. Selected Quarterly Information" of such
document.

As of December 31, 2002, the approximate number of shareholders of the
Registrant's common stock was 15,497. This number includes an estimate for
individual participants in the security positions of certain shareholders of
record. Actual shareholders of record at December 31, 2002 totaled 6,177.

Restrictions on the Registrant's ability to pay dividends are incorporated
herein by reference from Exhibit 13 on pages 85 and 86 under the caption "Note
20. Regulatory Matters" of such document.

Equity Compensation Plan Information
We have two stock option plans pursuant to which we grant performance-based
stock options to employees, officers and directors. Our Stock Compensation Plan
(the "2002 Plan") was approved by our shareholders in 2002. Our All-Employee
Stock Option Plan (the "All-Employee Plan") was not submitted to our
shareholders for approval. The 2002 Plan replaced our Third Amended Stock Option
Plan which has expired and our Stock Option Plan for Directors which was
terminated. Both of these plans were approved by our shareholders and there
continue to be options outstanding that were granted under these plans. The
following table sets forth, with respect to all of our option plans, (i) the
number of shares of common stock to be issued upon the exercise of outstanding
options, (ii) the weighted average exercise price of outstanding options, and
(iii) the number of shares remaining available for future issuance, as of
December 31, 2002.







                                                                                                 Number of shares
                                                                                             remaining available for
                                                                                              future issuance under
                                    Number of shares to be        Weighted-average          equity compensation plans
                                    issued upon exercise of       exercise price of             (excluding shares
      Plan Category                 outstanding options (1)       outstanding options        reflected in column (a))
 ------------------------           ------------------------   ------------------------      ------------------------
                                              (a)                         (b)                           (c)
                                                                                    
Equity compensation plans
approved by shareholders                   3,056,229                      $26.27                      6,098,300

Equity compensation plans not
approved by shareholders                     341,500  (2)                 $16.66                              0
                                        ------------                      ------                   ------------

Total                                      3,397,729                      $25.30                      6,098,300


(1)  Does not include options for 36,438 shares of our common stock that are
     outstanding as the result of our assuming obligations under stock option
     plans of F&M Bancorporation, Inc. ("F&M") in connection with our merger
     with F&M in 1999. While we assumed the obligations existing under these
     plans as of the time of the merger, we have not used them to make any
     further grants. The weighted-average exercise price of these outstanding
     options is $22.92.

(2)  Issued under the All-Employee Plan. Under this plan, on May 18, 2000, we
     granted stock options to all employees who did not receive grants under the
     then existing but since expired Third Amended Stock Option Plan. Each
     full-time employee received options for 200 shares of our common stock and
     each part-time employee received options for 100 shares. The $16.66
     exercise price of the grant was the market price of our common stock on the
     grant date. The options are exercisable subject to our achieving $2.65
     earnings per share on a rolling four-quarter basis or three years,
     whichever comes first. No shares of this option grant are yet exercisable.
     The options expire ten years from the date of grant. Options for a total of
     550,700 shares were granted of which options for 341,500 shares were
     outstanding as of December 31, 2002. The plan provides that no further
     grants may be made under the plan.

                                       12






ITEM 6.  SELECTED FINANCIAL DATA
The information required by this item is incorporated herein by reference from
Exhibit 13 on page 26 under the caption "Table 1. Five Year Summary of Selected
Financial Data" of such document.


ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS

Management's Discussion and Analysis of Financial Condition and
Results of Operations required by this item is incorporated herein by reference
from Exhibit 13 on pages 27 through 55 of such document.


ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
The information required by this item is incorporated by reference from Exhibit
13 on pages 52 through 54 under the captions "Interest Rate Risk" and "Interest
Rate Sensitivity" of such document.


ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
The Financial Statements are incorporated herein by reference from Exhibit 13 on
pages 56 through 90 of such document.

Supplementary data of Citizens' quarterly results of operations required by this
item are incorporated herein by reference from Exhibit 13 on page 55 of such
document under the caption "Table 14. Selected Quarterly Information."


ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE
None.




                                       13






                                    PART III
- --------------------------------------------------------------------------------

ITEM 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT
The information required by this item appears under the captions "Election of
Directors" (excluding the information under the headings "Report of the Audit
Committee," "Meetings Of Directors And Committees Of The Board Of Directors" and
"Compensation of Directors") and "Section 16(a) Beneficial Ownership Reporting
Compliance" on pages 5 through 11, and page 24, respectively, in Citizens' proxy
statement for its annual meeting of shareholders to be held April 15, 2003
("Proxy Statement").

On March 28, 2003, the board of directors appointed James L. Wolohan to the
board's audit committee. The board has determined that Mr. Wolohan is an "audit
committee financial expert" and is independent as defined under applicable
Nasdaq regulations.


ITEM 11.  EXECUTIVE COMPENSATION
The information required by this item appears under the caption "Compensation of
Directors," on page 9 and under the caption "Executive Compensation" (excluding
the information under the headings "Compensation and Human Resources Committee
on Executive Compensation" and "Shareholder Return) on pages 12 through 24 of
the Proxy Statement, and is incorporated herein by reference.


ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
The information required by this item appears under the captions "Security
Ownership of Certain Beneficial Owners" and "Security Ownership of Management"
on pages 2 through 4 of the Proxy Statement, and is incorporated herein by
reference. In addition the information included in the Equity Compensation Table
under Item 5 of this Report is incorporated herein by reference.


ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
The information required by this item appears under the caption "Compensation
Committee Interlocks and Certain Transactions and Relationships" on page 24 of
the Proxy Statement, and is incorporated herein by reference.


ITEM 14.  CONTROLS AND PROCEDURES
The management of Citizens Banking Corporation is responsible for establishing
and maintaining effective disclosure controls and procedures, as defined under
rule 13a-14 of the Securities Exchange Act of 1934. Within the 90 days prior to
the date of this report, an evaluation was performed under the supervision and
with the participation of management, including the Chief Executive Officer and
Chief Financial Officer, of the effectiveness of the design and operation of our
disclosure controls and procedures pursuant to rule 13a-15 of the Securities
Exchange Act of 1934. Based upon that evaluation, the Chief Executive Officer
and Chief Financial Officer concluded that the disclosure controls and
procedures were effective to cause the material information required to be
disclosed by the Company in the reports it files or submits under the Securities
Exchange Act of 1934 to be recorded, processed, summarized, and reported to the
extent applicable within the time period required by the Securities and Exchange
Commission's rules and forms.

There have been no significant changes in our internal controls or in other
factors that could significantly affect internal controls subsequent to the
conclusion of their evaluation.


                                       14





                                     PART IV
- --------------------------------------------------------------------------------

ITEM 15.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K
(a)  1. Financial Statements:
         The following consolidated financial statements of Citizens and Report
         of Ernst & Young LLP, Independent Auditors are incorporated by
         reference under Item 8 "Financial Statements and Supplementary Data" of
         this document:
              Consolidated Balance Sheets
              Consolidated Statements of Income
              Consolidated Statements of Changes in Shareholders' Equity
              Consolidated Statements of Cash Flows
              Notes to Consolidated Financial Statements
              Report of Ernst & Young LLP, Independent Auditors

     2. Financial Statement Schedules:
         All schedules are omitted - see Item 15(d) below.

     3. Exhibits:
         The exhibits listed on the "Exhibit Index" on pages 20 and 21 of this
         report are filed herewith and are incorporated herein by reference.

(b)  Reports on Form 8-K
         A report on Form 8-K, dated October 18, 2002 and filed on October 22,
         2002 announcing Citizens' results of operations for the three and nine
         month periods ending September 30, 2002 under items 5 and 9.

(c)  Exhibits:
         The "Exhibit Index" is filed herewith on pages 20 and 21 of this report
         and is incorporated herein by reference.

(d)  Financial Statement Schedules:
         All financial statement schedules normally required by Article 9 of
         Regulation S-X are omitted since they are either not applicable or the
         required information is shown in the consolidated financial statements
         or notes thereto.

                                       15






                                   SIGNATURES
- --------------------------------------------------------------------------------

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange
Act of 1934, the Registrant has duly caused this report to be signed on its
behalf by the undersigned, thereunto duly authorized.

CITIZENS BANKING CORPORATION
(Registrant)

by /s/ William R. Hartman                                  Date:  March 25, 2003
- -----------------------------------------------
William R. Hartman
Chairman, President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report
has been signed below by the following persons on behalf of the registrant and
in the capacities and on the dates indicated.



      Signature                                    Capacity                                        Date
- ----------------------------               ----------------------------                        --------------

                                                                                         
/s/ Charles D. Christy                     Executive Vice President and                        March 25, 2003
- ----------------------------               Chief Financial Officer
Charles D. Christy                         (Principal Financial Officer)


/s/ Daniel E. Bekemeier                    Senior Vice President and Controller                March 25, 2003
- ----------------------------               (Principal Accounting Officer)
Daniel E. Bekemeier

/s/ William R. Hartman                     Chairman of the Board, President,                   March 25, 2003
- ----------------------------               Chief Executive Officer, and Director
William R. Hartman

/s/ Edward P. Abbott                       Director                                            March 25, 2003
- ----------------------------
Edward P. Abbott

/s/ Jonathan E. Burroughs II               Director                                            March 25, 2003
- ----------------------------
Jonathan E. Burroughs II

/s/ Joseph P. Day                          Director                                            March 25, 2003
- ----------------------------
Joseph P. Day

/s/ Richard J. Dolinski                    Director                                            March 25, 2003
- ----------------------------
Richard J. Dolinski

/s/ Lawrence O. Erickson                   Director                                            March 25, 2003
- ----------------------------
Lawrence O. Erickson

/s/ Benjamin W. Laird                      Director                                            March 25, 2003
- ----------------------------
Benjamin W. Laird





                                       16





                             SIGNATURES (CONTINUED)
- --------------------------------------------------------------------------------


      Signature                                    Capacity                                        Date
- ----------------------------               ----------------------------                        --------------

                                                                                         
/s/ Stephen J. Lazaroff                    Director                                            March 25, 2003
- ----------------------------
Stephen J. Lazaroff

/s/ William C. Shedd                       Director                                            March 25, 2003
- ----------------------------
William C. Shedd

/s/ Ada C. Washington                      Director                                            March 25, 2003
- ----------------------------
Ada C. Washington

/s/ Kendall B. Williams                    Director                                            March 25, 2003
- ----------------------------
Kendall B. Williams

/s/ James L. Wolohan                       Director                                            March 25, 2003
- ----------------------------
James L. Wolohan




                                       17





                                 CERTIFICATIONS

I, WILLIAM R. HARTMAN, CHIEF EXECUTIVE OFFICER, PRESIDENT AND CHAIRMAN OF
CITIZENS BANKING CORPORATION, CERTIFY THAT:

         1.   I have reviewed this annual report on Form 10-K of Citizens
              Banking Corporation;

         2.   Based on my knowledge, this annual report does not contain any
              untrue statement of a material fact or omit to state a material
              fact necessary to make the statements made, in light of the
              circumstances under which such statements were made, not
              misleading with respect to the period covered by this annual
              report;

         3.   Based on my knowledge, the financial statements, and other
              financial information included in this annual report, fairly
              present in all material respects the financial condition, results
              of operations and cash flows of the registrant as of, and for, the
              periods presented in this annual report;

         4.   The registrant's other certifying officers and I are responsible
              for establishing and maintaining disclosure controls and
              procedures (as defined in Exchange Act Rules 13a-14 and 15d-14)
              for the registrant and have;

              a)  Designed such disclosure controls and procedures to ensure
                  that material information relating to the registrant,
                  including its consolidated subsidiaries, is made known to us
                  by others within those entities, particularly during the
                  period in which this annual report is being prepared;

              b)  Evaluated the effectiveness of the registrant's disclosure
                  controls and procedures as of a date within 90 days prior to
                  the filing date of this annual report (the "Evaluation Date");
                  and

              c)  Presented in this annual report our conclusions about the
                  effectiveness of the disclosure controls and procedures based
                  on our evaluation as of the Evaluation Date;

         5.   The registrant's other certifying officers and I have disclosed,
              based on our most recent evaluation, to the registrant's auditors
              and the audit committee of registrant's board of directors (or
              persons performing the equivalent function):

              a)  All significant deficiencies in the design or operation of
                  internal controls which could adversely affect the
                  registrant's ability to record, process, summarize and report
                  financial data and have identified for the registrant's
                  auditors any material weaknesses in internal controls; and

              b)  Any fraud, whether or not material, that involves management
                  or other employees who have a significant role in the
                  registrant's internal controls; and

         6.   The registrant's other certifying officers and I have indicated in
              this annual report whether or not there were significant changes
              in internal controls or in other factors that could significantly
              affect internal controls subsequent to the date of our most recent
              evaluation, including any corrective actions with regard to
              significant deficiencies and material weaknesses.



Date: March 31, 2003


                                       /s/ William R. Hartman
                                       ----------------------------------------
                                       William R. Hartman
                                       Chairman, President and Chief Executive
                                       Officer



                                       18





                           CERTIFICATIONS (CONTINUED)

I, CHARLES D. CHRISTY, EXECUTIVE VICE PRESIDENT AND CHIEF FINANCIAL OFFICER OF
CITIZENS BANKING CORPORATION, CERTIFY THAT:

         1.   I have reviewed this annual report on Form 10-K of Citizens
              Banking Corporation;

         2.   Based on my knowledge, this annual report does not contain any
              untrue statement of a material fact or omit to state a material
              fact necessary to make the statements made, in light of the
              circumstances under which such statements were made, not
              misleading with respect to the period covered by this annual
              report;

         3.   Based on my knowledge, the financial statements, and other
              financial information included in this annual report, fairly
              present in all material respects the financial condition, results
              of operations and cash flows of the registrant as of, and for, the
              periods presented in this annual report;

         4.   The registrant's other certifying officers and I are responsible
              for establishing and maintaining disclosure controls and
              procedures (as defined in Exchange Act Rules 13a-14 and 15d-14)
              for the registrant and have;

              a)  Designed such disclosure controls and procedures to ensure
                  that material information relating to the registrant,
                  including its consolidated subsidiaries, is made known to us
                  by others within those entities, particularly during the
                  period in which this annual report is being prepared;

              b)  Evaluated the effectiveness of the registrant's disclosure
                  controls and procedures as of a date within 90 days prior to
                  the filing date of this annual report (the "Evaluation Date");
                  and

              c)  Presented in this annual report our conclusions about the
                  effectiveness of the disclosure controls and procedures based
                  on our evaluation as of the Evaluation Date;

         5.   The registrant's other certifying officers and I have disclosed,
              based on our most recent evaluation, to the registrant's auditors
              and the audit committee of registrant's board of directors (or
              persons performing the equivalent function):

              a)  All significant deficiencies in the design or operation of
                  internal controls which could adversely affect the
                  registrant's ability to record, process, summarize and report
                  financial data and have identified for the registrant's
                  auditors any material weaknesses in internal controls; and

              b)  Any fraud, whether or not material, that involves management
                  or other employees who have a significant role in the
                  registrant's internal controls; and

         6.   The registrant's other certifying officers and I have indicated in
              this annual report whether or not there were significant changes
              in internal controls or in other factors that could significantly
              affect internal controls subsequent to the date of our most recent
              evaluation, including any corrective actions with regard to
              significant deficiencies and material weaknesses.


Date: March 31, 2003


                                                 /s/ Charles D. Christy
                                                 -------------------------------
                                                 Charles D. Christy
                                                 Executive Vice President and
                                                 Chief Financial Officer




                                       19






                                  EXHIBIT INDEX

The following documents are filed as part of this report. Those exhibits
previously filed and incorporated herein by reference are identified below.
Exhibits not required for this report have been omitted. Citizens' Commission
file number is 000-10535.

   Exhibit
     No.                                 Exhibit
- -----------  ------------------------------------------------------------------

     3.1     Restated Articles of Incorporation, as amended. (incorporated by
                reference from Exhibit 3(a) of Citizens' 2002 Second Quarter
                Quarterly Report on Form 10-Q).

     3.2     Amended and Restated Bylaws dated March 28, 2003.

     4       Rights Agreement, dated May 23, 2000, between Citizens and Citizens
                Bank, as Rights Agent (incorporated by reference from Exhibit
                4.1 of Citizens' Current Report on Form 8-K filed June 8, 2000).

    10.1*    Citizens Banking Corporation Second Amended Stock Option Plan
                (incorporated by reference from Exhibit 4 of Citizens'
                registration statement on Form S-8 filed May 5, 1992,
                Registration No. 33-47686).

    10.2*    Citizens Banking Corporation Third Amended Stock Option Plan
                (incorporated by reference from Exhibit 10(r) of Citizens' 1997
                Second Quarter Report on Form 10-Q).

    10.3*    First Amendment to Citizens Banking Corporation Third Amended Stock
                Option Plan (incorporated by reference from Exhibit 10.2 of
                Citizens' 2000 Second Quarter Report on Form 10-Q).

    10.4*    Citizens Banking Corporation All-Employee Stock Option Plan
                (incorporated by reference from Exhibit 99 of Citizens'
                registration statement on Form S-8 filed June 26, 2000,
                Registration No. 333-40100).

    10.5*    Citizens Banking Corporation Stock Option Plan for Directors
                (incorporated by reference from Exhibit 99 of Citizens'
                registration statement on Form S-8 filed July 21, 1995,
                Registration No. 33-61197).

    10.6*    First Amendment to Citizens Banking Corporation Stock Option Plan
                for Directors (incorporated by reference from Exhibit 10.3 of
                Citizens' 2000 Second Quarter Report on Form 10-Q).

    10.7*    Citizens Banking Corporation Stock Compensation Plan (incorporated
                by reference from exhibit 10.13 of Citizens' 2001 Annual Report
                on Form 10-K).

    10.8*    Post Effective Amendment No. 1 to Form S-4 on Form S-8 pertaining
                to "F&M Bancorporation, Inc. 1993 Incentive Stock Option Plan"
                and "F&M Bancorporation, Inc. 1993 Stock Option Plan for
                Non-employee Directors" (incorporated by reference to Form S-8
                filed December 22, 1999, file number 333-86569).

    10.9*    Citizens Banking Corporation Amended and Restated Section 401(k)
                Plan (incorporated by reference from Exhibit 99.1 of Citizens'
                registration statement on Form S-8 filed August 2, 1996 --
                Registration No. 333-09455).

    10.10*   Citizens Banking Corporation Management Incentive Compensation Plan
                (incorporated by reference from Exhibit 10.8 of Citizens' 2001
                Annual Report on Form 10-K).

    10.11*   Citizens Banking Corporation Amended and Restated Director's
                Deferred Compensation Plan.

    10.12*   Amended and Restated Citizens Banking Corporation Supplemental
                Retirement Benefits Plan for John W. Ennest (incorporated by
                reference from Exhibit 10.10 of Citizens' 2001 Annual Report on
                Form 10-K).



                                       20





                            EXHIBIT INDEX (Continued)
 Exhibit
    No.                                   Exhibit
- ----------   -------------------------------------------------------------------

    10.13*   Amended and Restated Citizens Banking Corporation Supplemental
                Retirement Benefits Plan for Robert J. Vitito (incorporated by
                reference from Exhibit 10.11 of Citizens' 2001 Annual Report on
                Form 10-K).

    10.14*   Amended and Restated Change in Control Agreement (incorporated by
                reference from Exhibit 10.12 of Citizens' 2001 Annual Report on
                Form 10-K).

    10.15*   Employment Agreement between William R. Hartman and Citizens
                Banking Corporation dated February 11, 2002 together with A.
                Form of Stock Compensation Plan, B. Restricted Stock Award
                Agreement, C. Nonqualified Stock Option Agreement, D. Management
                Incentive Plan, E. Supplemental Executive Retirement Plan, F.
                Change in Control Agreement, and G. Director Indemnification
                Agreement (incorporated by reference from Exhibit 10.14 of
                Citizens' 2001 Annual Report on Form 10-K).

    10.16*   First Amendment to Employment Agreement between William R. Hartman
                and Citizens Banking Corporation dated December 13, 2002

    10.17*   Second Amendment to Employment Agreement between William R. Hartman
                and Citizens Banking Corporation dated January 23, 2003

    11       Computation of Per Share Earnings (incorporated by reference from
                Exhibit 13 on page 78 of such document under the caption "Note
                15. Earnings Per Share").

    13       Citizens Banking Corporation 2002 Annual Report -- financial
                information pages 25 through 90 only (except as to portions
                expressly incorporated herein, said Annual Report information is
                included only for the information of the Commission).

    21       Subsidiaries of the Registrant

    23       Consent of Ernst & Young LLP

    99.1     Certification of Chief Executive Officer pursuant to U.S.C. Section
                1350

    99.2     Certification of Chief Financial Officer pursuant to U.S.C. Section
                1350


* Current management contracts or compensatory plans or arrangements.


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