As of the 2010 United States Census, there were 2,982 people, 1,291 households, and 838 families in the county. The population density was . There were 1,739 housing units at an average density of . The racial makeup of the county was 96.9% white, 1.3% American Indian, 0.1% black or African American, 0.1% Asian, 0.5% from other races, and 1.1% from two or more races. Those of Hispanic or Latino origin made up 0.7% of the population. In terms of ancestry, 47.4% were German, 26.2% were Norwegian, 10.8% were English, 8.7% were Irish, 8.4% were Swedish, and 5.8% were American.