As of the 2010 United States Census, there were 28,669 people, 10,586 households, and 7,973 families residing in the county. The population density was . There were 11,688 housing units at an average density of . The racial makeup of the county was 73.2% white, 24.4% black or African American, 0.7% Asian, 0.2% American Indian, 0.4% from other races, and 1.1% from two or more races. Those of Hispanic or Latino origin made up 1.1% of the population. In terms of ancestry, 15.2% were American, 10.6% were Irish, 10.4% were English, and 5.4% were German.