Marion, SD -- U.S. city in South Dakota Population (2000): 892 Housing Units (2000): 377 Land area (2000): 0.868659 sq. miles (2.249816 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.868659 sq. miles (2.249816 sq. km) FIPS code: 40860 Located within: South Dakota (SD), FIPS 46 Location: 43.423367 N, 97.259875 W ZIP Codes (1990): 57043 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Marion, SD Marion