As of the 2010 United States Census, there were 37,069 people, 14,536 households, and 9,744 families residing in the county. The population density was . There were 16,195 housing units at an average density of . The racial makeup of the county was 93.4% white, 3.4% black or African American, 0.4% American Indian, 0.3% Asian, 1.6% from other races, and 0.9% from two or more races. Those of Hispanic or Latino origin made up 2.4% of the population. In terms of ancestry, 23.7% were German, 19.1% were American, 14.0% were English, and 13.2% were Irish.