McCook County, South Dakota

McCook County
Location within the U.S. state of South Dakota
South Dakota's location within the U.S.
Coordinates: 43°40′49.498″N 97°21′28.972″W / 43.68041611°N 97.35804778°W / 43.68041611; -97.35804778
Country United States
State South Dakota
FoundedJanuary 8, 1873 (created)
June 15, 1878 (organized)
Named afterEdwin Stanton McCook
SeatSalem
Largest citySalem
Area
  Total
576.867 sq mi (1,494.08 km2)
  Land574.205 sq mi (1,487.18 km2)
  Water2.662 sq mi (6.89 km2)  0.5%
Population
 (2020)
  Total
5,682
  Estimate 
(2024)
5,771
  Density10.115/sq mi (3.905/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional districtAt-large
Websitemccookcountysd.com

McCook County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 5,682. Its county seat is Salem. The county was established in 1873, and was organized in 1878. It was named for the former governor of the Dakota Territory and Civil War general Edwin Stanton McCook.

McCook County is part of the Sioux Falls, SD Metropolitan Statistical Area.