Carbon, IA -- U.S. city in Iowa Population (2000): 28 Housing Units (2000): 28 Land area (2000): 0.708502 sq. miles (1.835011 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.708502 sq. miles (1.835011 sq. km) FIPS code: 10585 Located within: Iowa (IA), FIPS 19 Location: 41.050208 N, 94.825171 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Carbon, IA Carbon