 In terms of ancestry, 15.3% were American, 13.4% were African American (which can include other ethnicities), 13.3% were Irish, 12.8% were German, 11.3% were English, and 6.1% were Italian.Of the 112,225 households, 27.3% had children under the age of 18 living with them, 47.2% were married couples living together, 12.5% had a female householder with no husband present, 35.6% were not families, and 26.8% of all households were made up of individuals.The average household size was 2.37 and the average family size was 2.84.