Postville Courthouse is a reproduction of Logan County's first seat of government. Constructed in 1840, the original building until 1848 was one of the courts in which Abraham Lincoln argued cases while traveling the historic Eighth Judicial Circuit. The first floor has a reception and orientation room and an exhibit gallery. On the second floor are rooms representing an 1840s courtroom and a county office.

The courthouse offers exhibits, tours, and occasional recreational and educational events.