Denver, IA -- U.S. city in Iowa Population (2000): 1627 Housing Units (2000): 672 Land area (2000): 1.381231 sq. miles (3.577372 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.381231 sq. miles (3.577372 sq. km) FIPS code: 20035 Located within: Iowa (IA), FIPS 19 Location: 42.672070 N, 92.333604 W ZIP Codes (1990): 50622 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Denver, IA Denver