Langford, SD -- U.S. town in South Dakota Population (2000): 290 Housing Units (2000): 163 Land area (2000): 0.283106 sq. miles (0.733240 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.283106 sq. miles (0.733240 sq. km) FIPS code: 35820 Located within: South Dakota (SD), FIPS 46 Location: 45.602096 N, 97.831422 W ZIP Codes (1990): 57454 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Langford, SD Langford