There were 6,174 households, of which 48.1% had children under the age of 18 living with them, 73.2% were married couples living together, 7.2% had a female householder with no husband present, 3.5% had a male householder with no wife present, and 16.1% were non-families. 12.0% of all households were made up of individuals, and 2.4% had someone living alone who was 65 years of age or older. The average household size was 3.05 and the average family size was 3.37.