Jackson -- U.S. County in South Dakota Population (2000): 2930 Housing Units (2000): 1173 Land area (2000): 1869.125613 sq. miles (4841.012909 sq. km) Water area (2000): 2.118997 sq. miles (5.488176 sq. km) Total area (2000): 1871.244610 sq. miles (4846.501085 sq. km) Located within: South Dakota (SD), FIPS 46 Location: 43.768510 N, 101.669286 W Headwords: Jackson Jackson, SD Jackson County Jackson County, SD