 There were 40,020 households, out of which 31.9% had children under the age of 18 living with them, 54.2% were married couples living together, 10.3% had a female householder with no husband present, and 31.7% were non-families.24.6% of all households were made up of individuals, and 7.8% had someone living alone who was 65 years of age or older.The average household size was 2.63 and the average family size was 3.15.