sentences:  In terms of ancestry, 32.5% were German, 20.8% were American, 15.6% were Irish, and 14.3% were English.Of the 5,140 households, 32.4% had children under the age of 18 living with them, 57.5% were married couples living together, 9.6% had a female householder with no husband present, 28.3% were non-families, and 24.3% of all households were made up of individuals.The average household size was 2.44 and the average family size was 2.87.