As of the 2010 United States Census, there were 26,839 people, 11,125 households, and 7,707 families living in the county. The population density was . There were 12,699 housing units at an average density of . The racial makeup of the county was 97.1% white, 1.8% black or African American, 0.2% Asian, 0.1% American Indian, 0.0% from other races, and 0.9% from two or more races. Those of Hispanic or Latino origin made up 0.4% of the population. In terms of ancestry, 12.6% were Irish, 11.9% were American, 7.0% were German, and 6.9% were English.