As of the 2010 United States Census, there were 7,817 people, 2,641 households, and 2,019 families living in the county. The population density was . There were 2,944 housing units at an average density of . The racial makeup of the county was 75.1% white, 2.3% American Indian, 0.4% Asian, 0.3% black or African American, 0.1% Pacific islander, 19.5% from other races, and 2.4% from two or more races. Those of Hispanic or Latino origin made up 29.8% of the population. In terms of ancestry, 16.7% were German, 16.7% were English, and 7.2% were American.