McLaughlin, SD -- U.S. city in South Dakota Population (2000): 775 Housing Units (2000): 291 Land area (2000): 0.422317 sq. miles (1.093797 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.422317 sq. miles (1.093797 sq. km) FIPS code: 40020 Located within: South Dakota (SD), FIPS 46 Location: 45.813029 N, 100.811447 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: McLaughlin, SD McLaughlin