As of the census of 2000, there were 21,399 people, 8,398 households, and 5,870 families living in the county. The population density was 28 people per square mile (11/km2). There were 9,957 housing units at an average density of 13 per square mile (5/km2). The racial makeup of the county was 58.38% White, 40.81% Black or African American, 0.21% Native American, 0.16% Asian, 0.05% from other races, and 0.39% from two or more races. 0.67% of the population were Hispanic or Latino of any race.