As of the census of 2000, there were 20,551 people, 8,364 households, and 5,654 families living in the county. The population density was 32 people per square mile (12/km2). There were 9,111 housing units at an average density of 14 per square mile (6/km2). The racial makeup of the county was 95.62% White, 0.19% Black or African American, 1.27% Native American, 0.51% Asian, 0.02% Pacific Islander, 0.63% from other races, and 1.77% from two or more races. 1.95% of the population were Hispanic or Latino of any race. 25.9% were of German, 12.4% English, 11.9% Irish and 11.0% United States or American ancestry. 97.9% spoke English and 1.6% Spanish as their first language.