 The racial makeup of the county was 73.9% white, 21.7% American Indian, 0.4% Asian, 0.3% black or African American, 0.3% from other races, and 3.3% from two or more races.Those of Hispanic or Latino origin made up 2.3% of the population.In terms of ancestry, 28.9% were German, 18.5% were Norwegian, 12.7% were Irish, 9.2% were English, and 3.0% were American.