As of the census of 2000, there were 51,731 people, 19,863 households, and 13,884 families residing in the county. The population density was . There were 22,508 housing units at an average density of . The racial makeup of the county was 97.93% White, 0.17% Black or African American, 0.42% Native American, 0.27% Asian, 0.01% Pacific Islander, 0.54% from other races, and 0.66% from two or more races. 1.38% of the population were Hispanic or Latino of any race. 53.1% were of German, 8.5% Norwegian and 6.8% Irish ancestry. 96.6% spoke English, 1.4% Spanish and 1.3% German as their first language.
As of the census of 2000, there were 51,731 people, 19,863 households, and 13,884 families residing in the county. The population density was . There were 22,508 housing units at an average density of . The racial makeup of the county was 97.93% White, 0.17% Black or African American, 0.42% Native American, 0.27% Asian, 0.01% Pacific Islander, 0.54% from other races, and 0.66% from two or more races. 1.38% of the population were Hispanic or Latino of any race. 53.1% were of German, 8.5% Norwegian and 6.8% Irish ancestry. 96.6% spoke English, 1.4% Spanish and 1.3% German as their first language.