Mellette -- U.S. County in South Dakota Population (2000): 2083 Housing Units (2000): 824 Land area (2000): 1306.486125 sq. miles (3383.783385 sq. km) Water area (2000): 3.262016 sq. miles (8.448583 sq. km) Total area (2000): 1309.748141 sq. miles (3392.231968 sq. km) Located within: South Dakota (SD), FIPS 46 Location: 43.576525 N, 100.794839 W Headwords: Mellette Mellette, SD Mellette County Mellette County, SD