 Of the 15,531 households 26.0% had children under the age of 18 living with them, 50.2% were married couples living together, 13.1% had a female householder with no husband present, and 32.1% were non-families.28.1% of households were one person and 12.6% were one person aged 65 or older.The average household size was 2.39 and the average family size was 2.91.