Montrose, AR -- U.S. city in Arkansas Population (2000): 526 Housing Units (2000): 220 Land area (2000): 0.460921 sq. miles (1.193780 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.460921 sq. miles (1.193780 sq. km) FIPS code: 46670 Located within: Arkansas (AR), FIPS 05 Location: 33.298682 N, 91.497150 W ZIP Codes (1990): 71658 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Montrose, AR Montrose