sentences:  In terms of ancestry, 32.2% claimed German, 11.1% claimed American, 9.8% claimed Irish, and 8.5% claimed English.Of the 17,355 households, 35.9% had children under the age of 18 living with them, 57.2% were married couples living together, 10.0% had a female householder with no husband present, 27.5% were non-families, and 22.9% of all households were made up of individuals.The average household size was 2.69 and the average family size was 3.16.