Iron River, MI -- U.S. city in Michigan Population (2000): 1929 Housing Units (2000): 988 Land area (2000): 3.471495 sq. miles (8.991130 sq. km) Water area (2000): 0.019676 sq. miles (0.050961 sq. km) Total area (2000): 3.491171 sq. miles (9.042091 sq. km) FIPS code: 40980 Located within: Michigan (MI), FIPS 26 Location: 46.096295 N, 88.640589 W ZIP Codes (1990): 49935 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Iron River, MI Iron River