Bennett -- U.S. County in South Dakota Population (2000): 3574 Housing Units (2000): 1278 Land area (2000): 1185.290981 sq. miles (3069.889417 sq. km) Water area (2000): 5.298971 sq. miles (13.724272 sq. km) Total area (2000): 1190.589952 sq. miles (3083.613689 sq. km) Located within: South Dakota (SD), FIPS 46 Location: 43.249887 N, 101.743867 W Headwords: Bennett Bennett, SD Bennett County Bennett County, SD