 Of the 23,483 households, 39.2% had children under the age of 18 living with them, 52.9% were married couples living together, 14.2% had a female householder with no husband present, and 27.5% were not families.About 23.0% of all households were made up of individuals, and 8.0% had someone living alone who was 65 years of age or older.The average household size was 2.80 and the average family size was 3.32.