 There were 18,829 housing units at an average density of 18 per square mile (7/km2).The racial makeup of the county was 84.8% White, 12.5% Black or African American, 0.6% Native American, 0.4% Asian, 0.0% Pacific Islander, 0.4% from other races, and 1.4% from two or more races.1.3% of the population were Hispanic or Latino of any race.