 In terms of ancestry, 45.3% were German, 21.1% were English, 17.3% were Irish, and 6.2% were American.Of the 3,838 households, 24.5% had children under the age of 18 living with them, 54.9% were married couples living together, 6.9% had a female householder with no husband present, 34.7% were non-families, and 30.6% of all households were made up of individuals.The average household size was 2.23 and the average family size was 2.76.