Marquette, IA -- U.S. city in Iowa Population (2000): 421 Housing Units (2000): 222 Land area (2000): 1.219526 sq. miles (3.158559 sq. km) Water area (2000): 0.062684 sq. miles (0.162351 sq. km) Total area (2000): 1.282210 sq. miles (3.320910 sq. km) FIPS code: 49620 Located within: Iowa (IA), FIPS 19 Location: 43.042838 N, 91.184177 W ZIP Codes (1990): 52158 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Marquette, IA Marquette