As of the 2010 United States Census, there were 32,888 people, 12,777 households, and 8,733 families residing in the county. The population density was . There were 14,171 housing units at an average density of . The racial makeup of the county was 96.6% white, 0.7% American Indian, 0.5% black or African American, 0.4% Asian, 0.7% from other races, and 1.1% from two or more races. Those of Hispanic or Latino origin made up 2.1% of the population. In terms of ancestry, 31.3% were German, 18.1% were American, 10.1% were English, and 10.0% were Irish.