Maquoketa, IA -- U.S. city in Iowa Population (2000): 6112 Housing Units (2000): 2797 Land area (2000): 3.446646 sq. miles (8.926772 sq. km) Water area (2000): 0.029610 sq. miles (0.076689 sq. km) Total area (2000): 3.476256 sq. miles (9.003461 sq. km) FIPS code: 49215 Located within: Iowa (IA), FIPS 19 Location: 42.066901 N, 90.666238 W ZIP Codes (1990): 52060 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Maquoketa, IA Maquoketa