There were 11,964 households, of which 33.1% had children under the age of 18 living with them, 45.2% were married couples living together, 16.3% had a female householder with no husband present, 5.7% had a male householder with no wife present, and 32.8% were non-families. 27.0% 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 2.50 and the average family size was 3.00.