Cooper County, Missouri

Cooper County
Cooper County Courthouse in Boonville
Location within the U.S. state of Missouri
Missouri's location within the U.S.
Coordinates: 38°51′N 92°49′W / 38.85°N 92.81°W / 38.85; -92.81
Country United States
State Missouri
FoundedDecember 17, 1818
Named afterSarshell Cooper
SeatBoonville
Largest cityBoonville
Area
  Total
569 sq mi (1,470 km2)
  Land565 sq mi (1,460 km2)
  Water4.4 sq mi (11 km2)  0.8%
Population
 (2020)
  Total
17,103
  Density30/sq mi (12/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district4th
Websitewww.coopercountymo.gov

Cooper County is located in the central portion of the U.S. state of Missouri. As of the 2020 United States census, the population was 17,103. Its county seat is Boonville. The county was organized December 17, 1818, and named for Sarshell Cooper, a frontier settler who was killed by Native Americans near Arrow Rock in 1814. It is a part of the Columbia, Missouri metropolitan area.