As of the 2010 United States Census, there were 24,277 people, 9,719 households, and 6,669 families residing in the county. The population density was . There were 10,898 housing units at an average density of . The racial makeup of the county was 96.9% white, 1.3% black or African American, 0.3% Asian, 0.1% American Indian, 0.3% from other races, and 1.0% from two or more races. Those of Hispanic or Latino origin made up 0.9% of the population. In terms of ancestry, 20.4% were German, 15.2% were American, 11.8% were Irish, and 8.2% were English.