there were 11,209 households out of which 46.6% had children under the age of 18 living with them, 70.7% were married couples living together, 5.0% had a female householder with no husband present, and 22.6% were non-families. 18.5% of all households were made up of individuals and 3.8% had someone living alone who was 65 years of age or older. the average household size was 2.80 and the average family size was 3.24.