Following the establishment of Thomas County, Thedford became the county seat in 1887, and a courthouse was built two years later. The courthouse served the county well until it was destroyed in a fire in 1920. After some delays a special election was held in 1923, where voters approved a bond issue to help finance the construction of a new courthouse. Work began that same year and in 1924 the county took possession of the new courthouse. Listed on the National Register of Historic Places.