 There were 16,706 housing units at an average density of .The racial makeup of the county was 93.2% white, 3.0% American Indian, 1.0% Asian, 0.5% black or African American, 0.1% Pacific islander, 0.4% from other races, and 1.7% from two or more races.Those of Hispanic or Latino origin made up 1.4% of the population.