As of the 2010 United States Census, there were 32,428 people, 12,635 households, and 8,456 families residing in the county. The population density was . There were 14,311 housing units at an average density of . The racial makeup of the county was 95.2% white, 1.7% black or African American, 0.7% Asian, 0.2% American Indian, 0.9% from other races, and 1.3% from two or more races. Those of Hispanic or Latino origin made up 2.3% of the population. In terms of ancestry, 23.5% were German, 15.4% were American, 12.9% were Irish, and 11.2% were English.