Midland, SD -- U.S. town in South Dakota Population (2000): 179 Housing Units (2000): 91 Land area (2000): 0.343619 sq. miles (0.889970 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.343619 sq. miles (0.889970 sq. km) FIPS code: 42140 Located within: South Dakota (SD), FIPS 46 Location: 44.071134 N, 101.156336 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Midland, SD Midland