There were 13,703 households, of which 36.9% had children under the age of 18 living with them, 51.0% were married couples living together, 13.3% had a female householder with no husband present, 5.0% had a male householder with no wife present, and 30.7% were non-families. 24.2% of all households were made up of individuals, and 10.3% had someone living alone who was 65 years of age or older. The average household size was 2.64 and the average family size was 3.13.