As of the census of 2010, there were 40,814 people, 14,756 households, and 11,022 families living in the county. The population density was 88 people per square mile (34/km2). There were 15,875 housing units at an average density of 34 per square mile (13/km2). The racial makeup of the county was 98.44% White, 0.10% Black or African American, 0.26% Native American, 0.29% Asian, 0.02% Pacific Islander, 0.34% from other races, and 0.56% from two or more races. 1.15% of the population were Hispanic or Latino of any race.