Monroe -- U.S. County in Mississippi Population (2000): 38014 Housing Units (2000): 16236 Land area (2000): 764.173620 sq. miles (1979.200505 sq. km) Water area (2000): 7.867530 sq. miles (20.376807 sq. km) Total area (2000): 772.041150 sq. miles (1999.577312 sq. km) Located within: Mississippi (MS), FIPS 28 Location: 33.899309 N, 88.500821 W Headwords: Monroe Monroe, MS Monroe County Monroe County, MS