McCook County

Also known as McCook County, South Dakota, McCook County, SD

county in South Dakota, United States of America

Key facts

Country: United States
State: South Dakota
Founded: January 8, 1873 (created), June 15, 1878 (organized)
Named after: Edwin Stanton McCook
Seat: Salem
Largest city: Salem
Total: 576.867 sq mi (1,494.08 km )
Land: 574.205 sq mi (1,487.18 km )
Water: 2.662 sq mi (6.89 km ) 0.5%
Estimate 2025: 5,964
Density: 10.4/sq mi (4.0/km )
Time zone: UTC−6 ( Central )
Summer dst

Article

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 metropolitan area.