There were 9,747 households, of which 37.1% had children under the age of 18 living with them, 52.0% were married couples living together, 12.3% had a female householder with no husband present, 5.0% had a male householder with no wife present, and 30.7% were non-families. 25.7% of all households were made up of individuals, and 8.7% had someone living alone who was 65 years of age or older. The average household size was 2.57 and the average family size was 3.08.