Ironwood, MI -- U.S. city in Michigan Population (2000): 6293 Housing Units (2000): 3349 Land area (2000): 6.553472 sq. miles (16.973415 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 6.553472 sq. miles (16.973415 sq. km) FIPS code: 41060 Located within: Michigan (MI), FIPS 26 Location: 46.455931 N, 90.159378 W ZIP Codes (1990): 49938 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Ironwood, MI Ironwood