There were 11,664 households, of which 30.5% had children under the age of 18 living with them, 43.8% were married couples living together, 12.8% had a female householder with no husband present, 5.5% had a male householder with no wife present, and 37.9% were non-families. 30.1% of all households were made up of individuals, and 10.6% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.10.