sentences:  In terms of ancestry, 9.3% were German, 7.6% were Irish, 7.2% were English, and 6.3% were American.Of the 22,236 households, 41.9% had children under the age of 18 living with them, 52.8% were married couples living together, 13.4% had a female householder with no husband present, 26.9% were non-families, and 22.6% of all households were made up of individuals.The average household size was 2.82 and the average family size was 3.30.