Corson -- U.S. County in South Dakota Population (2000): 4181 Housing Units (2000): 1536 Land area (2000): 2472.934867 sq. miles (6404.871630 sq. km) Water area (2000): 56.482784 sq. miles (146.289732 sq. km) Total area (2000): 2529.417651 sq. miles (6551.161362 sq. km) Located within: South Dakota (SD), FIPS 46 Location: 45.750233 N, 101.139288 W Headwords: Corson Corson, SD Corson County Corson County, SD