There were 4,170 households, of which 34.1% had children under the age of 18 living with them, 75.6% were married couples living together, 4.1% had a female householder with no husband present, 3.3% had a male householder with no wife present, and 16.9% were non-families. 13.7% of all households were made up of individuals, and 5.2% had someone living alone who was 65 years of age or older. The average household size was 2.71 and the average family size was 2.99.