As of the 2010 United States Census, there were 29,405 people, 11,695 households, and 7,753 families living in the county. The population density was . There were 14,189 housing units at an average density of . The racial makeup of the county was 97.3% white, 1.2% black or African American, 0.3% Asian, 0.2% American Indian, 0.1% from other races, and 0.8% from two or more races. Those of Hispanic or Latino origin made up 0.7% of the population. In terms of ancestry, 26.3% were German, 15.9% were Irish, 12.0% were English, 10.2% were American, and 5.4% were Italian.