As of the 2000 United States Census, there were 32,821 people, 13,276 households, and 9,027 families in the county. The population density was 51.5/sqmi (19.9/km2). There were 16,694 housing units at an average density of 26.2/sqmi (10.1/km2). The racial makeup of the county was 98.49% White, 0.18% Black or African American, 0.24% Native American, 0.40% Asian, 0.03% Pacific Islander, 0.18% from other races, and 0.48% from two or more races. 0.59% of the population were Hispanic or Latino of any race. 38.5% were of German, 24.6% Norwegian and 8.1% Swedish ancestry.