As of the 2010 census, there were 1,680 people, 774 households, and 429 families in the county. The population density was . There were 967 housing units at an average density of . The racial makeup of the county was 97.4% white, 0.6% American Indian, 0.6% black or African American, 0.1% Pacific islander, 0.1% Asian, 0.5% from other races, and 0.8% from two or more races. Those of Hispanic or Latino origin made up 2.1% of the population. In terms of ancestry, 69.0% were German, 14.7% were Norwegian, 10.7% were Polish, 7.9% were Irish, 7.5% were English, and 2.5% were American.