There were 7,698 households, of which 33.3% had children under the age of 18 living with them, 56.9% were married couples living together, 8.4% had a female householder with no husband present, 2.9% had a male householder with no wife present, and 31.7% were non-families. 27.5% of all households were made up of individuals, and 9.6% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 3.09.