As of the 2010 United States Census there were 16,571 people, 6,428 households, and 4,634 families residing in the county. The population density was 30 people per square mile (11/km2). There were 10,822 housing units at an average density of 19 per square mile (7/km2). The racial makeup of the county was 98.44% White, 0.21% Black or African American, 0.78% Native American, 0.22% Asian, 0.05% Pacific Islander, 0.10% from other races, 0.86% of the population were Hispanic or Latino of any race. 24.6% were of German, 12.4% English, 10.4% Irish, 10.0% American, 6.3% Polish and 5.1% French ancestry. 98.8% spoke English as their first language.