sentences:  There were 12,907 households out of which 33.4% had children under the age of 18 living with them, 50.4% were married couples living together, 16.3% had a female householder with no husband present, and 29.5% were non-families.25.4% of all households were made up of individuals and 11.4% had someone living alone who was 65 years of age or older.The average household size was 2.52 and the average family size was 3.01.