 There were 17,989 households out of which 32.20% had children under the age of 18 living with them, 51.30% were married couples living together, 15.20% had a female householder with no husband present, and 29.70% were non-families.26.90% of all households were made up of individuals and 12.10% had someone living alone who was 65 years of age or older.The average household size was 2.48 and the average family size was 3.00.