 43.6% were of Norwegian, 15.6% German, 6.5% Swedish, and 6.2% American ancestry.There were 3,330 households out of which 30.60% had children under the age of 18 living with them, 56.80% were married couples living together, 7.50% had a female householder with no husband present, and 31.30% were non-families.27.90% of all households were made up of individuals and 14.50% had someone living alone who was 65 years of age or older.