Charles City, IA -- U.S. city in Iowa Population (2000): 7812 Housing Units (2000): 3597 Land area (2000): 6.151556 sq. miles (15.932455 sq. km) Water area (2000): 0.087187 sq. miles (0.225812 sq. km) Total area (2000): 6.238743 sq. miles (16.158267 sq. km) FIPS code: 12765 Located within: Iowa (IA), FIPS 19 Location: 43.066514 N, 92.675885 W ZIP Codes (1990): 50616 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Charles City, IA Charles City