There were 10,263 households, of which 40.2% had children under the age of 18 living with them, 53.7% were married couples living together, 12.7% had a female householder with no husband present, 5.7% had a male householder with no wife present, and 27.9% were non-families. 21.9% of all households were made up of individuals, and 7.9% had someone living alone who was 65 years of age or older. The average household size was 2.68 and the average family size was 3.10.