The first office of the Mercer County Building and Loan Association was located on South Main Street in Celina where the city parking lot is now located.  In 1914, space was rented from the Celina Gas Company for a new office location.  (It rented for $8.00 per month with heat and light included.)  Then again in 1934 the office was moved to Room 20 in the Union Block, the building most recently occupied by the News Stand at the corner of Main and Fayette Streets.

In December of 1938 Mercer County Building and Loan Association purchased its first permanent office at 130 W. Market Street for $5,200 from Fred and Margaret Fortman.  Extensive remodeling was done at the time to suit the needs of the Association. Mercer County Building and Loan Association enjoyed the use of this location for many years until 1972 when the new office was constructed at 217 W. Market Street, the present location.