Springfield, the seat of Washington county, was established in 1793 and named for the springs in the area. Springfield was incorporated in 1847. A post office opened as Springfield Court House in 1796. The population in 2010 was 2,519.
The Washington county courthouse in Springfield was built in 1816.
- Lincoln Legacy Museum
- Springfield, City of
- Springfield-Washington County Chamber of Commerce
- Washington County Fiscal Court
- Washington County Schools