sentences:  There were 3,994 households out of which 31.6% had children under the age of 18 living with them, 48.0% were married couples living together, 16.7% had a female householder with no husband present, and 31.6% were non-families.28.4% of all households were made up of individuals and 12.6% had someone living alone who was 65 years of age or older.The average household size was 2.40 and the average family size was 2.94.