Oelrichs, SD -- U.S. town in South Dakota Population (2000): 145 Housing Units (2000): 76 Land area (2000): 0.377616 sq. miles (0.978020 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.377616 sq. miles (0.978020 sq. km) FIPS code: 46500 Located within: South Dakota (SD), FIPS 46 Location: 43.181458 N, 103.233601 W ZIP Codes (1990): 57763 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Oelrichs, SD Oelrichs