There were 6,623 households, of which 42.3% had children under the age of 18 living with them, 52.7% were married couples living together, 7.1% had a male householder with no wife present, 13.2% had a female householder with no husband present, and 27.0% were non-families. 21.7% of all households were made up of individuals, and 7.5% had someone living alone who was 65 years of age or older. The average household size was 3.03, and the average family size was 3.54.