 39.3% were of German, 14.8% American, 9.2% Polish, 8.3% Norwegian, 8.0% Irish and 6.0% English ancestry.96.1% spoke English, 1.8% Spanish and 1.1% German as their first language.There were 7,900 households out of which 23.60% had children under the age of 18 living with them, 58.50% were married couples living together, 6.70% had a female householder with no husband present, and 30.80% were non-families.