Montrose, IA -- U.S. city in Iowa Population (2000): 957 Housing Units (2000): 399 Land area (2000): 1.123111 sq. miles (2.908844 sq. km) Water area (2000): 0.016186 sq. miles (0.041921 sq. km) Total area (2000): 1.139297 sq. miles (2.950765 sq. km) FIPS code: 53760 Located within: Iowa (IA), FIPS 19 Location: 40.529532 N, 91.415995 W ZIP Codes (1990): 52639 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Montrose, IA Montrose