sentences:  The population density was 38 people per square mile (15/km²).There were 6,781 housing units at an average density of 20 per square mile (8/km²).The racial makeup of the county was 73.17% White, 24.57% Black or African American, 0.53% Native American, 0.38% Asian, 0.02% Pacific Islander, 0.59% from other races, and 0.74% from two or more races.