Ames, IA -- U.S. city in Iowa Population (2000): 50731 Housing Units (2000): 18757 Land area (2000): 21.566552 sq. miles (55.857111 sq. km) Water area (2000): 0.017351 sq. miles (0.044940 sq. km) Total area (2000): 21.583903 sq. miles (55.902051 sq. km) FIPS code: 01855 Located within: Iowa (IA), FIPS 19 Location: 42.027335 N, 93.631586 W ZIP Codes (1990): 50010 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Ames, IA Ames