PRESS RELEASE

FOR IMMEDIATE RELEASE

Contact: Douglas Ian Shaw                        SUFFOLK [LOGO] BANCORP
         Corporate Secretary                      4 West Second Street
         (631) 727-5667                            Riverhead, NY 11901
                                                  (631) 727-5667 (Voice) -
                                                  (631) 727-3214 (FAX)
                                                invest@suffolkbancorp.com


              SUFFOLK BANCORP ANNOUNCES REGULAR QUARTERLY DIVIDEND

      Riverhead, New York, May 28, 2003, -- Suffolk Bancorp (NASDAQ - SUBK)
announced that the Board of Directors, at its regular meeting on May 27, 2003,
declared a regular quarterly dividend of $0.19 per share of common stock to all
shareholders of record on June 13, 2003, payable on July 1, 2003.

      Suffolk Bancorp is a one-bank holding company engaged in the commercial
banking business through The Suffolk County National Bank, a full service
commercial bank headquartered in Riverhead, New York. "SCNB" is Suffolk
Bancorp's wholly owned subsidiary. Organized in 1890, The Suffolk County
National Bank is the second largest independent bank headquartered on Long
Island, with 27 offices in Suffolk County, New York.

      Safe Harbor Statement Pursuant to the Private Securities Litigation Reform
      Act of 1995

      This press release may include statements which look to the future. These
can include remarks about Suffolk Bancorp, the banking industry, and the economy
in general. These remarks are based on current plans and expectations. They are
subject, however, to a variety of uncertainties that could cause future results
to vary materially from Suffolk's historical performance, or from current
expectations. Factors affecting Suffolk Bancorp include particularly, but are
not limited to: changes in interest rates; increases or decreases in retail and
commercial economic activity in Suffolk's market area; variations in the ability
and propensity of consumers and businesses to borrow, repay, or deposit money,
or to use other banking and financial services; and changes in government
regulations.

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