There were 4,516 households, of which 35.8% had children under the age of 18 living with them, 55.6% were married couples living together, 11.8% had a female householder with no husband present, 3.1% had a male householder with no wife present, and 29.5% were non-families. 24.7% of all households were made up of individuals, and 8.8% had someone living alone who was 65 years of age or older. The average household size was 2.56 and the average family size was 3.10.