Barton County is a county located in the southwestern part of the U.S. state of Missouri. As of the 2020 census, the population was 11,637. Its county seat is Lamar. The county was organized in 1855 and named after U.S. Senator David Barton from Missouri.
President Harry S. Truman was born in Barton County in 1884. The female bandit, Little Britches, was born in Barton County in 1879.
Geography
According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.8%) is water.
Adjacent counties
- Vernon County (north)
- Cedar County (northeast)
- Dade County (east)
- Jasper County (south)
- Crawford County, Kansas (west)
Major highways
- 25px Interstate 49
- 25px U.S. Route 71
- 25px U.S. Route 160
- 25px Route 37
- 25px Route 43
- 25px Route 126
Airport
Lamar Municipal Airport (LLU) serves the county and surrounding communities.