There were 11,650 households, of which 31.3% had children under the age of 18 living with them, 48.4% were married couples living together, 12.1% had a female householder with no husband present, 5.3% had a male householder with no wife present, and 34.2% were non-families. 28.2% of all households were made up of individuals, and 10.8% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 3.06.