As of the 2010 United States Census, there were 22,140 people, 8,311 households, and 5,648 families living in the county. The population density was . There were 9,302 housing units at an average density of . The racial makeup of the county was 93.7% white, 4.4% black or African American, 0.2% Asian, 0.2% American Indian, 0.4% from other races, and 1.0% from two or more races. Those of Hispanic or Latino origin made up 1.4% of the population. In terms of ancestry, 27.5% were German, 10.5% were English, 9.4% were American, and 9.3% were Irish.