sentences:  In terms of ancestry, 36.6% were German, 17.2% were Irish, 11.2% were American, 10.7% were English, and 5.1% were Italian.Of the 14,613 households, 30.7% had children under the age of 18 living with them, 52.0% were married couples living together, 9.9% had a female householder with no husband present, 33.3% were non-families, and 28.6% of all households were made up of individuals.The average household size was 2.43 and the average family size was 2.98.