Audrain County, Missouri

Audrain County
The Audrain County Courthouse in Mexico
Nickname: 
Biofuel Capital of Missouri
Location within the U.S. state of Missouri
Missouri's location within the U.S.
Coordinates: 39°13′N 91°50′W / 39.21°N 91.84°W / 39.21; -91.84
Country United States
State Missouri
FoundedDecember 17, 1836
Named afterJames Hunter Audrain
SeatMexico
Largest cityMexico
Area
  Total
697 sq mi (1,810 km2)
  Land692 sq mi (1,790 km2)
  Water4.6 sq mi (12 km2)  0.7%
Population
 (2020)
  Total
24,962
  Estimate 
(2024)
24,304
  Density35/sq mi (14/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional districts4th, 6th
Websitewww.audraincounty.org

Audrain County is a county located in the central part of the U.S. state of Missouri. As of the 2020 census, the population was 24,962. Its county seat is Mexico. The county was organized December 13, 1836, and named for Colonel James Hunter Audrain of the War of 1812 and who later was elected to the state legislature.