There were 9,810 households, of which 45.1% had children under the age of 18 living with them, 56.3% were married couples living together, 11.9% had a female householder with no husband present, 5.8% had a male householder with no wife present, and 26.1% were non-families. 19.1% of all households were made up of individuals, and 5.2% had someone living alone who was 65 years of age or older. The average household size was 2.86 and the average family size was 3.26.