 There were 6,711 households, out of which 38.4% had children under the age of 18 living with them, 66.8% were married couples living together, 7.1% had a female householder with no husband present, and 23.5% were non-families.20.3% of all households were made up of individuals, and 9.0% had someone living alone who was 65 years of age or older.The average household size was 2.70 and the average family size was 3.14.