Cascade, IA -- U.S. city in Iowa Population (2000): 1958 Housing Units (2000): 820 Land area (2000): 1.131037 sq. miles (2.929371 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.131037 sq. miles (2.929371 sq. km) FIPS code: 11305 Located within: Iowa (IA), FIPS 19 Location: 42.297535 N, 91.012215 W ZIP Codes (1990): 52033 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Cascade, IA Cascade