Monroe -- U.S. County in Arkansas Population (2000): 10254 Housing Units (2000): 5067 Land area (2000): 606.646513 sq. miles (1571.207189 sq. km) Water area (2000): 14.764766 sq. miles (38.240567 sq. km) Total area (2000): 621.411279 sq. miles (1609.447756 sq. km) Located within: Arkansas (AR), FIPS 05 Location: 34.732843 N, 91.207816 W Headwords: Monroe Monroe, AR Monroe County Monroe County, AR