EXHIBIT 32.1
      DISCLOSURE PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the accompanying Quarterly Report on Form 10-Q of United
Bancorp, Inc. ('"Company") for the quarter ended June 30, 2008 ("Report"), each
of the undersigned, hereby certifies, pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best
of his respective knowledge and belief, that:

     (1)  The Report fully complies with the requirements of Section 13(a) or
          15(d) of the Securities Exchange Act of 1934; and

     (2)  The information contained in the Report fairly presents, in all
          material respects, the financial condition and results of operations
          of the Company.


/s/ Robert K. Chapman                                    July 25, 2008
-------------------------------------------------        -------------------
Robert K. Chapman                                                Date
President and Chief Executive Officer
(Principal Executive Officer)


/s/ Randal J. Rabe                                       July 25, 2008
-------------------------------------------------        -------------------
Randal J. Rabe                                                   Date
Executive Vice President and Chief Financial Officer
(Principal Financial Officer)