Warren -- U.S. County in Virginia Population (2000): 31584 Housing Units (2000): 13299 Land area (2000): 213.698013 sq. miles (553.475290 sq. km) Water area (2000): 2.626148 sq. miles (6.801692 sq. km) Total area (2000): 216.324161 sq. miles (560.276982 sq. km) Located within: Virginia (VA), FIPS 51 Location: 38.924956 N, 78.184419 W Headwords: Warren Warren, VA Warren County Warren County, VA