 There were 7,001 households, out of which 33.3% had children under the age of 18 living with them, 42.3% were married couples living together, 20.9% had a female householder with no husband present, and 32.2% were non-families.28.1% of all households were made up of individuals, and 11.9% had someone living alone who was 65 years of age or older.The average household size was 2.57 and the average family size was 3.16.