 20.2% were of English ancestry, 20.0% were of German ancestry, 8.4% were of Irish ancestry, and 6.1% were of Dutch ancestry.97.5% spoke English and 1.3% Spanish as their first language.There were 4,704 households out of which 23.00% had children under the age of 18 living with them, 52.40% were married couples living together, 8.70% had a female householder with no husband present, and 35.10% were non-families.