 39.4% were of German, 14.4% Irish, 13.0% Norwegian, and 9.9% Swedish ancestry.There were 87,446 households out of which 38.6% had children under the age of 18 living with them, 60.6% were married couples living together, 9.5% had a female householder with no husband present, and 26.5% were non-families.21.5% of all households were made up of individuals and 7.3% had someone living alone who was 65 years of age or older.