Auburn, IA -- U.S. city in Iowa Population (2000): 296 Housing Units (2000): 142 Land area (2000): 0.485316 sq. miles (1.256963 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.485316 sq. miles (1.256963 sq. km) FIPS code: 03610 Located within: Iowa (IA), FIPS 19 Location: 42.250857 N, 94.877191 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Auburn, IA Auburn