 17.4% were of German, 13.9% Irish, 12.0% English, 9.6% American, and 8.0% Norwegian ancestry.There were 1,789 households, of which 17.8% had children under the age of 18 living with them, 56.7% were married couples living together, 7.1% had a female householder with no husband present, and 33.0% were non-families.27.7% of households were one person and 12.6% were one person aged 65 or older.