As of the census of 2000, there were 21,681 people, 8,113 households, and 5,865 families residing in the county. The population density was 40 people per square mile (15 people/km2). There were 9,287 housing units at an average density of 17 units per square mile (6.6/km2). The racial makeup of the county was 89.66% White, 0.18% Black or African American, 2.88% Native American, 0.14% Asian, 0.14% Pacific Islander, 3.70% from other races, and 3.30% from two or more races. Approximately 9.36% of the population were Hispanic or Latino of any race. 28.0% were of American, 11.5% German, 10.5% Irish and 6.6% English ancestry.
