United States
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 11-K

(Mark One)

|X|   ANNUAL REPORT PURSUANT TO SECTION 15 (d) OF THE SECURITIES EXCHANGE ACT OF
      1934 (FEE REQUIRED)

                 For the fiscal year ended December 31, 2003 or


|_|   TRANSACTION REPORT PURSUANT TO SECTION 15 (d) OF THE SECURITIES AND
      EXCHANGE ACT OF 1934 (NO FEE REQUIRED)

                 For the transaction period from _____ to _____


                         Commission File Number 0-11716

A.    Full title of the plan and the address of the plan, if different from that
      of the issuer named below:

                           Community Bank System, Inc.
                      401(k) Employee Stock Ownership Plan
                             5790 Widewaters Parkway
                             DeWitt, New York 13214

B.    Name of Issuer of the securities held pursuant to the plan and the address
      of its principal executive office.

                           Community Bank System, Inc.
                             5790 Widewaters Parkway
                             DeWitt, New York 13214




                              REQUIRED INFORMATION

1.    Not applicable

2.    Not applicable

3.    Not applicable

4.    The Community Bank System, Inc. 401(k) Employee Stock Ownership Plan (the
      "Plan") is subject to the requirements of the Employee Retirement Income
      Security Act of 1974 ("ERISA"). Attached hereto as Appendix I is a copy of
      the most recent financial statements of the Plan prepared in accordance
      with the financial reporting requirements of ERISA.

Exhibits

(23)  Consent of PricewaterhouseCoopers LLP.




                                   Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the trustee
has duly caused this annual report to be signed on its behalf by the
undersigned, thereunto duly authorized.

                                         Community Bank System, Inc.
                                         401(k) Employee Stock Ownership Plan

                                         Community Bank, N. A., Trustee

Dated: June 25, 2004
                                         /s/ Mark E. Tryniski
                                         ---------------------------------------
                                         Mark E. Tryniski
                                         Treasurer, Chief Operating Officer and
                                         Chief Financial Officer




                                   Appendix I

                              Financial Statements

        Community Bank System, Inc. 401(k) Employee Stock Ownership Plan

                           December 31, 2003 and 2002




Community Bank System, Inc.
401(k) Employee Stock Ownership Plan
(formerly the Community Bank System, Inc.
Employee Savings and Retirement Plan)
Notes to Financial Statements
December 31, 2003 and 2002
--------------------------------------------------------------------------------



                                                                              Page(s)

                                                                              
Report of Independent Auditors ..............................................       1

Financial Statements

Statements of Net Assets Available for Benefits, ............................       2

Statements of Changes in Net Assets Available for Benefits, .................       3

Notes to Financial Statements ...............................................    4 -8

Supplemental Schedule

Schedule of Assets (Held at End of Year) (Schedule H, Part IV, Item (i)) ....       9


Note: All other schedules are omitted since they are not applicable or are not
      required based on the disclosure requirements of the Employee Retirement
      Income Security Act of 1974 and applicable regulations issued by the
      Department of Labor.




Community Bank System, Inc.
401(k) Employee Stock Ownership Plan
(formerly the Community Bank System, Inc.
Employee Savings and Retirement Plan)
Notes to Financial Statements
December 31, 2003 and 2002
--------------------------------------------------------------------------------

             Report of Independent Registered Public Accounting Firm

Compensation Committee and Participants of
Community Bank System, Inc.
401(k) Employee Stock Ownership Plan

In our opinion, the accompanying statements of net assets available for benefits
and the related statements of changes in net assets available for benefits
present fairly, in all material respects, the net assets available for benefits
of Community Bank System, Inc. 401(k) Employee Stock Ownership Plan (formerly
the Community Bank System, Inc. Employee Savings and Retirement Plan) (the
"Plan") at December 31, 2003 and 2002, and the changes in net assets available
for benefits for the years ended December 31, 2003 and 2002 in conformity with
accounting principles generally accepted in the United States of America. These
financial statements are the responsibility of the Plan's management. Our
responsibility is to express an opinion on these financial statements based on
our audits. We conducted our audits of these statements in accordance with the
standards of the Public Company Accounting Oversight Board (United States) and
auditing standards generally accepted in the United States of America. Those
standards require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements, assessing the
accounting principles used and significant estimates made by management, and
evaluating the overall financial statement presentation. We believe that our
audits provide a reasonable basis for our opinion.

Our audits were conducted for the purpose of forming an opinion on the basic
financial statements taken as a whole. The supplemental schedule of assets held
for investment purposes is presented for the purpose of additional analysis and
is not a required part of the basic financial statements but is supplementary
information required by the Department of Labor's Rules and Regulations for
Reporting and Disclosure under the Employee Retirement Income Security Act of
1974. This supplemental schedule is the responsibility of the Plan's management.
The supplemental schedule has been subjected to the auditing procedures applied
in the audits of the basic financial statements and, in our opinion, is fairly
stated in all material respects in relation to the basic financial statements
taken as a whole.

/s/ PricewaterhouseCoopers LLP

Syracuse, New York
May 28, 2004


                                       1


Community Bank System, Inc.
401(k) Employee Stock Ownership Plan
(formerly the Community Bank System, Inc.
Employee Savings and Retirement Plan)
Notes to Financial Statements
December 31, 2003 and 2002
--------------------------------------------------------------------------------

                                                         2003            2002
Assets
Investments at fair value
    Mutual funds                                    $ 27,105,195    $ 21,053,219
    Common stock of Plan sponsor                      16,552,974      10,605,978
    Self directed brokerage                              231,668         125,406
    Loans to participants                              1,336,423       1,057,551
                                                    ------------    ------------
        Total investments                             45,226,260      32,842,154
Receivable from plan merger (Note F)                   3,391,468              --
Contributions receivable - employee                       81,547              --
Contributions receivable - employer                      584,348         459,406
                                                    ------------    ------------
        Net assets available for benefits           $ 49,283,623    $ 33,301,560
                                                    ============    ============

      The accompany notes are an integral part of the financial statements.


                                       2


Community Bank System, Inc.
401(k) Employee Stock Ownership Plan
(formerly the Community Bank System, Inc.
Employee Savings and Retirement Plan)
Notes to Financial Statements
December 31, 2003 and 2002
--------------------------------------------------------------------------------



                                                                         2003            2002
                                                                              
Additions
Employee contributions                                              $  2,871,482    $  3,158,388
Employer contributions                                                 1,321,959       1,162,120
Interest income                                                          138,073          18,818
Dividend income                                                        1,115,367       1,044,084
Net appreciation (depreciation) in the fair value of investments       9,246,282        (767,771)
Transfer from merged plan (Note F)                                     3,391,468              --
                                                                    ------------    ------------
                                                                      18,084,631       4,615,639
                                                                    ------------    ------------
Deductions
Benefits paid to participants                                          2,026,077       1,143,335
Administrative expenses                                                   76,491          73,338
                                                                    ------------    ------------
                                                                       2,102,568       1,216,673
                                                                    ------------    ------------
        Net increase in plan assets                                   15,982,063       3,398,966
Net assets available for benefits
Beginning of year                                                     33,301,560      29,902,594
                                                                    ------------    ------------
End of year                                                         $ 49,283,623    $ 33,301,560
                                                                    ============    ============


      The accompany notes are an integral part of the financial statements.


                                       3


Community Bank System, Inc.
401(k) Employee Stock Ownership Plan
(formerly the Community Bank System, Inc.
Employee Savings and Retirement Plan)
Notes to Financial Statements
December 31, 2003 and 2002
--------------------------------------------------------------------------------

A.    Description of the Plan

      The following description of the Community Bank System, Inc. 401(k)
      Employee Stock Ownership Plan (formerly the Community Bank System, Inc.
      Employee Savings and Retirement Plan) ("the Plan") provides only general
      information. Participants should refer to the Plan agreement for a more
      complete description of the Plan's provisions.

      General

      The Plan is a defined contribution plan which covers substantially all
      Community Bank System, Inc. (the "Company") employees who are age eighteen
      or older. Employees must have 1 year of service to be eligible for the
      Company's contribution. The Plan also qualifies as an employee stock
      ownership plan under the meaning of Section 4975(e)(7) of the Internal
      Revenue Code. The Plan is subject to the provisions of the Employment
      Retirement Income Security Act of 1974 (ERISA).

      Contributions

      Participants may make voluntary contributions of up to 90% of their total
      compensation on a pre-tax or after-tax basis up to a maximum contribution
      of $12,000. Voluntary cash contributions of up to 6% of total eligible
      compensation are matched 50% by the Company and such match was $765,430
      and $702,714 in 2003 and 2002, respectively. Within certain maximum
      limitations, the amount of the Company's annual discretionary
      contributions are determined by the Board of Directors. In addition, the
      Company may make discretionary profit sharing contributions to the Plan
      which are allocated to individual participant accounts. Such voluntary
      contributions were $556,529 and $459,406 in 2003 and 2002, respectively.

      Participant Accounts

      Each participant's account is credited with the participant's contribution
      and allocations of (a) the Company's contribution and (b) Plan earnings,
      and charged with an allocation of administrative expenses. Allocation of
      Plan earnings and administrative expenses are based on participant
      earnings or account balances, as defined. The benefit to which a
      participant is entitled is the benefit that can be provided from the
      participant's vested account. Forfeited accounts are allocated annually to
      eligible participant accounts based on the ratio of each eligible
      participant's compensation to total eligible participant compensation.
      Forfeited accounts allocated to eligible participants amounted to $8,980
      and $9,087 for 2003 and 2002, respectively.

      Vesting

      Participants are immediately vested in their contributions and the
      Company's discretionary profit sharing contributions. Vesting in the
      Company's matching contribution portion plus actual earnings thereon is
      based on years of continuous service. A participant is 100 percent vested
      after three years of service.

      Participant Loans

      Participants may borrow from the Plan a minimum of $1,000 up to a maximum
      equal to the lesser of $50,000 or 50 percent of their vested account
      balance. Loans are collateralized by the balance in the participant's
      account and bear interest at a rate of prime plus two percent.


                                       4


Community Bank System, Inc.
401(k) Employee Stock Ownership Plan
(formerly the Community Bank System, Inc.
Employee Savings and Retirement Plan)
Notes to Financial Statements
December 31, 2003 and 2002
--------------------------------------------------------------------------------

      Payment of Benefits

      Normal retirement date for participants under the Plan is the later of age
      65 or the completion of 5 years of service. Upon termination of service
      due to death, disability or retirement, the participant will receive
      either a lump sum amount or installment payments equal to the value of the
      participant's vested interest in his or her account. If some or all of a
      participant's account balance is allocated to the employee stock option
      feature of the Plan, that portion of the Plan benefit may be paid in the
      form of Company stock. Upon termination of employment, if the account
      balance is less than $5,000, the participant will receive a single lump
      sum amount equal to the value of his or her account, otherwise, the
      participant may elect to defer payment up to age 65. Hardship withdrawals
      of up to 100% of employee contributions are available if Internal Revenue
      Service guidelines are met.

      Plan Termination

      Although it has not expressed any intent to do so, the Company has the
      right under the Plan to discontinue contributions at any time and
      terminate the Plan subject to the terms of ERISA. In the event of a
      termination of the Plan, the net assets of the Plan are to be set aside
      for participating employees based upon balances then credited to
      individual accounts. Participants shall be vested 100% in the assets so
      allocated to their accounts.

B.    Significant Accounting Policies

      Basis of Accounting

      The financial statements included herein have been prepared on an accrual
      basis of accounting in accordance with accounting principles generally
      accepted in the United States of America.

      Investments

      Investments are stated at aggregate fair value, except for the SEI Stable
      Asset GIC Fund which is stated at cost, which approximates fair value.
      Securities which are traded on a national securities exchange are valued
      at the last reported sales price on the last business day of the Plan
      year. Participant loan receivable balances are reported at cost, which
      approximates fair value.

      The Plan presents in the statement of changes in net assets, the net
      appreciation (depreciation) in the fair value of its investments which
      consists of realized gains or losses and unrealized appreciation
      (depreciation) on those investments.

      Purchases and sales of securities are recorded on the trade date. Gains or
      losses on sales of securities are based on average cost. Interest income
      is recorded on the accrual basis. Dividends are recorded on the
      ex-dividend date.

      Payment of Benefits

      Benefits are recorded when paid.

      Administrative Expenses

      Certain administrative expenses are paid by the Company. These amounted to
      approximately $173,000 and $141,000, including approximately $136,000 and
      $104,000 paid to Benefit Plans Administrative Services ("BPA"), in 2003
      and 2002, respectively. (See Note D).


                                       5


Community Bank System, Inc.
401(k) Employee Stock Ownership Plan
(formerly the Community Bank System, Inc.
Employee Savings and Retirement Plan)
Notes to Financial Statements
December 31, 2003 and 2002
--------------------------------------------------------------------------------

      Inactive Accounts

      Account balances of individuals who have withdrawn from participation in
      the Plan were on an accumulated basis of approximately $7,949,961 and
      $5,540,627 at December 31, 2003 and 2002, respectively.

      Use of Estimates

      The preparation of financial statements in conformity with accounting
      principles generally accepted in the United States of America requires
      management to make estimates and assumptions that affect the reported
      amounts of assets and liabilities and disclosures of contingent assets and
      liabilities at the date of the financial statements and the reported
      amounts of revenues and expenses during the reporting period. Actual
      results could differ from those estimates.

      Risks and Uncertainties

      The plan provides for various investment options in mutual funds and
      Company stock. Investment securities are exposed to various risks, such as
      interest rate, market and credit. Due to the level of risk associated with
      certain investment securities and the level of uncertainty related to
      changes in the value of investment securities, it is at least reasonably
      possible that changes in risk in the near term would materially affect
      participants' account balances and the amounts reported in the statement
      of net assets available for plan benefits and the statement of changes in
      net assets available for plan benefits.

C.    Investments

      Investments are held within various common funds maintained by the
      Community Bank, N.A. Trust Department. Participants, at their discretion,
      may allocate contributions and account balances between various investment
      options offered by the Plan. A brief description of these investment
      options, as provided by the plan administrator, follows:

      Community Bank System, Inc. Employee Stock Ownership Fund - these Funds
      invest in the common stock of the Plan sponsor, which is traded on the New
      York Stock Exchange under the symbol "CBU".

      SEI Stable Asset GIC Fund - a mutual fund that holds primarily a
      diversified portfolio of stable value contracts issued by insurance
      companies and banks. Investments in the SEI Stable Asset GIC Fund are not
      marketable securities and are reported at cost, which approximates fair
      value.

      Washington Mutual Investors Fund - a mutual fund that invests in common
      stocks and securities convertible into such common stocks.

      Federated Total Return Bond Fund - a mutual fund seeking to provide total
      return by investing primarily in a diversified portfolio of investment
      grade fixed income securities.

      Manager Special Equity Fund - a mutual fund that invests in equity
      securities of small- and medium-sized U.S. companies.


                                       6


Community Bank System, Inc.
401(k) Employee Stock Ownership Plan
(formerly the Community Bank System, Inc.
Employee Savings and Retirement Plan)
Notes to Financial Statements
December 31, 2003 and 2002
--------------------------------------------------------------------------------

      Massachusetts Investors Growth Fund - a mutual fund that invests in common
      stocks and securities convertible into common stocks that offer long-term
      growth.

      EuroPacific Growth Fund - a mutual fund that invests in stocks of issuers
      located in Europe and the Pacific Basin.

      Dreyfus S&P 500 Index Fund - a mutual fund that invests in equities and
      seeks to match the performance of the S&P 500 Composite Stock Price Index.

      Federated Mid-Cap Index Fund - a mutual fund primarily that invests in
      stocks of U.S. companies.

      TD Waterhouse IDA Account - participants select the individual investment
      securities, including equity securities, mutual funds, and bonds.

      The fair value of individual investments which represent 5% or more of net
      assets available for benefits at either December 31, 2003 or 2002 are as
      follows:

                                                          2003           2002

   Community Bank System, Inc. Common Stock          $ 16,552,974   $ 10,605,978
   SEI Stable Asset GIC Fund                            9,011,419      8,095,573
   Washington Mutual Investors Fund                     7,130,530      5,418,673
   Federated Total Return Bond Fund                     2,843,347      2,743,170
   Manager Special Equity Fund                          2,586,283      1,389,311

      The Plan's investments appreciated/(depreciated) in value as follows:



                                                               2003            2002

                                                                    
   Mutual Funds                                           $  2,996,506    $ (1,840,959)
   Common Stock of Plan Sponsor                              6,249,776       1,073,188
                                                          ------------    ------------
     Total net depreciation in fair value of investments     9,246,282    $   (767,771)
                                                          ============    ============


D.    Transactions with Parties-in-Interest

      The assets of the Plan are managed by BPA, a subsidiary of Community Bank
      System, Inc. The Company paid BPA approximately $136,000 and $104,000 for
      record keeping, trustee and other services in 2003 and 2002, respectively.


                                       7


Community Bank System, Inc.
401(k) Employee Stock Ownership Plan
(formerly the Community Bank System, Inc.
Employee Savings and Retirement Plan)
Notes to Financial Statements
December 31, 2003 and 2002
--------------------------------------------------------------------------------

      The Plan held 675,632 and 676,616 shares of the sponsor company common
      stock at December 31, 2003 and 2002, respectively. The cost of these
      shares at December 31, 2003 and 2002 is $6,814,388 and $5,915,539,
      respectively, and their fair value at December 31, 2003 and 2002 is
      $16,552,974 and $10,605,978, respectively. On January 21, 2004, the
      Company announced a two-for-one stock split to be effected in the form of
      a 100% stock dividend paid on April 12, 2004 to shareholders of record on
      March 17, 2004. Accordingly, all share amounts have been adjusted to
      reflect the stock split.

      Dividends received on the investment in Community Bank System, Inc. common
      stock amounted to $413,814 and $349,520 for the years ended December 31,
      2003 and 2002, respectively. The Plan sold 602,196 and 89,348 shares of
      Community Bank System, Inc. common stock during 2003 and 2002,
      respectively, and purchased 608,478 and 105,870 shares of Community Bank
      System, Inc. common stock during 2003 and 2002, respectively.

E.    Income Tax Status

      The Plan obtained its most recent determination letter in July 2003, in
      which the Internal Revenue Service stated that the plan, as then designed,
      was in compliance with Section 401(a) of the Internal Revenue Code. The
      Plan has been amended since receiving the determination letter, however,
      the Plan administrator believes that the Plan is currently designed and
      being operated in compliance with the applicable requirements of the
      Internal Revenue Code.

F.    Plan Merger

      On November 24, 2003, the Company acquired Grange National Banc Corp.
      Effective December 30, 2003, the Grange National Banc Corp. Employee Stock
      Ownership Plan with 401(k) provisions was merged into the Plan.
      Accordingly, total plan assets of $3,391,468 were transferred to the Plan
      in 2004.


                                       8


Community Bank System, Inc.
401(k) Employee Stock Ownership Plan
(formerly the Community Bank System, Inc.
Employee Savings and Retirement Plan)
Notes to Financial Statements
December 31, 2003 and 2002
--------------------------------------------------------------------------------



                                              (c) Description of investment
                                             including maturity date, rate of
(a)   (b) Identify of issue, borrower,          interest, collateral, par or      (e) Current
           lessor or similar party                    maturity value                  value

                                                                            
      Mutual Funds
      SEI Stable Asset GIC Fund               Mutual Fund - 9,011,419 shares      $  9,011,419
      Washington Mutual Investors Fund        Mutual Fund - 247,760 shares           7,130,530
      Federated Total Return Bond Fund        Mutual Fund - 262,301 shares           2,843,347
      Manager Special Equity Fund             Mutual Fund - 32,950 shares            2,586,283
      Massachusetts Investors Growth Fund     Mutual Fund - 163,758 shares           1,853,740
      EuroPacific Growth Fund                 Mutual Fund - 55,794 shares            1,685,537
      Dreyfus S&P 500 Index Fund              Mutual Fund - 44,561 shares            1,445,117
      Federated Mid-Cap Index Fund            Mutual Fund - 28,937 shares              549,222
                                                                                  ------------
                                                                                    27,105,195
      Common stock of plan sponsor
*     Community Bank Systems, Inc.            Common stock - 675,632 shares         16,552,974
      Self directed brokerage
      TD Waterhouse IDA Accounts              Self-directed brokerage                  231,668
      Loan Fund
      Participants loans                      5% - 10-1/2%                           1,336,423
                                                                                  ------------
           Total investments                                                      $ 45,226,260
                                                                                  ============


*     Denotes party-in-interest


                                       9