 There were 13,931 households, out of which 42.3% had children under the age of 18 living with them, 53.9% were married couples living together, 15.4% had a female householder with no husband present, and 25.5% were non-families.20.6% of all households were made up of individuals, and 8.7% had someone living alone who was 65 years of age or older.The average household size was 2.93 and the average family size was 3.39.