Marion County, Mississippi

Marion County
Marion County courthouse in Columbia
Location within the U.S. state of Mississippi
Mississippi's location within the U.S.
Coordinates: 31°14′N 89°49′W / 31.23°N 89.82°W / 31.23; -89.82
Country United States
State Mississippi
Founded1811
Named afterFrancis Marion
SeatColumbia
Largest cityColumbia
Area
  Total
549 sq mi (1,420 km2)
  Land542 sq mi (1,400 km2)
  Water6.2 sq mi (16 km2)  1.1%
Population
 (2020)
  Total
24,441
  Estimate 
(2023)
24,224
  Density45/sq mi (17/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district3rd
Websitewww.marioncountyms.com

Marion County is a county located in the U.S. state of Mississippi. As of the 2020 census, the population was 24,441. Its county seat is Columbia. Marion County is named for American Revolutionary War guerrilla leader Francis Marion also known as The Swamp Fox.