UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, DC  20549

                                    FORM 8-K


                                 CURRENT REPORT

                       Pursuant to Section 13 or 15(d) of
                      the Securities Exchange Act of 1934

     Date of Report (Date of earliest event reported):  February 24, 2005
                              (February 14, 2005)


                            BLACKHAWK BANCORP, INC.
                            -----------------------

             (Exact name of registrant as specified in its charter)


     Wisconsin                      0-18599                    39-1659424
 -----------------          ------------------------      ---------------------
(State or other             (Commission File Number)      (IRS Employer Number)
jurisdiction of
incorporation)

         400 Broad Street, Beloit, WI                  53511
         ----------------------------                  -----
   (Address of principal executive offices)          (Zip Code)


      Registrant's telephone number, including area code:  (608) 364-8911
                                                            -------------

     Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[ ]  Written communications pursuant to Rule 425 under the Securities Act (17
     CFR 230.425)

[ ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
     240.14a-12)

[ ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the
     Exchange Act (17 CFR 240.14d-2(b))

[ ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the
     Exchange Act (17 CFR 240.13e-4(c))



ITEM 5.02.  DEPARTURE OF DIRECTORS OR PRINCIPAL OFFICERS; ELECTION OF
            DIRECTORS; APPOINTMENT OF PRINCIPAL OFFICERS.

February 24, 2005 - Blackhawk State Bank, a wholly-owned subsidary of Blackhawk
Bancorp, Inc. announced that Dale Reeves has been promoted to Senior Vice
President Consumer Banking & Wealth Management, effective immediately.  Mr.
Reeves, 45, who has been serving as the interim leader of Consumer Banking,
brings over 20 years of financial services experience to the position,
including mortgage origination, investment services and branch management.



                           *     *     *     *     *



                                   SIGNATURES

Pursuant to the requirements 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.


Date:  February 24, 2005                BLACKHAWK BANCORP, INC.


                                        /s/ Todd J. James
                                        ----------------------------------
                                        Todd J. James
                                        Executive Vice President and CFO
                                        (Duly authorized officer of the
                                        registrant and principal financial
                                        officer)