Sullivan County, Missouri

Sullivan County
Sullivan County
County
	Sullivan County Courthouse in Milan
	Location within the U.S. state of Missouri
	Missouri's location within the U.S.
	Coordinates: 40°13′N 93°07′W / 40.21°N 93.11°W
Country	United States
State	Missouri
Founded	1843 (created); 1845 (organized)
Named for	John Sullivan
Seat	Milan
Largest city	Milan
Area
• Total	652 sq mi (1,690 km2)
• Land	648 sq mi (1,680 km2)
• Water	3.5 sq mi (9 km2) 0.5%
Population (2020)
• Total	5,999
• Density	9.2/sq mi (3.6/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	6th

Sullivan County is a county located in the northern portion of the U.S. state of Missouri. As of the 2020 census, the population was 5,999.^[1] Its county seat is Milan.^[2] The county was organized February 14, 1845, and named for Major General John Sullivan of the American Revolutionary War.^[3]

^ "Explore Census Data". data.census.gov. Retrieved December 20, 2021.
^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
^ Eaton, David Wolfe (1917). How Missouri Counties, Towns and Streams Were Named. The State Historical Society of Missouri. p. 68.