There were 7,913 households, out of which 40.1% had families with children under the age of 18 living with them, 81.6% were married couples living together, 2.1% had a male householder with no wife present, 4.8% had a female householder with no husband present, and 11.5% were non-families. 9.5% of all households were made up of individuals, and 3.4% had someone living alone who was 65 years of age or older. The average household size was 2.88 and the average family size was 3.08.