As of the 2010 United States Census, there were 36,299 people, 15,691 households, and 7,430 families in the county. The population density was . There were 17,939 housing units at an average density of . The racial makeup of the county was 90.1% white, 2.8% Asian, 1.2% black or African American, 0.7% American Indian, 0.1% Pacific islander, 2.4% from other races, and 2.7% from two or more races. Those of Hispanic or Latino origin made up 8.8% of the population. In terms of ancestry, 31.2% were German, 15.3% were Irish, 12.5% were English, and 4.4% were American.