 There were 76,389 households, out of which 30.9% had children under the age of 18 living with them, 47.4% were married couples living together, 10.6% had a female householder with no husband present, and 37.1% were non-families.27.5% of all households were made up of individuals, and 6.9% had someone living alone who was 65 years of age or older.The average household size was 2.56 and the average family size was 3.18.