As of the 2010 United States Census, there were 11,119 people, 4,746 households, and 3,021 families in the county. The population density was 8.67/sqmi (3.35/km2). There were 5,498 housing units at an average density of 4.29/sqmi (1.66/km2). The racial makeup of the county was 93.5% white, 1.5% American Indian, 0.3% Asian, 0.2% black or African American, 3.1% from other races, and 1.3% from two or more races. Those of Hispanic or Latino origin made up 8.7% of the population. In terms of ancestry, 39.7% were Norwegian, 21.6% were German, 11.0% were Polish, 9.4% were Irish, 9.3% were Czech, 5.8% were English, and 5.4% were American.