The first Muscatine County Courthouse was constructed of brick in 1840, three years after the county was established but six years before Iowa became a state. The courthouse was replaced by a two-story brick building in 1867, constructed at a cost of $29,000. The present building was completed in 1910 and features a limestone exterior, Corinthian columns, and an iconic clock tower. The courthouse was one of two Beaux-Arts buildings in Muscatine designed by Joseph E. Mills and Sons of Detroit.