There were 10,991 households, of which 28.4% had children under the age of 18 living with them, 42.6% were married couples living together, 13.2% had a female householder with no husband present, 5.4% had a male householder with no wife present, and 38.8% were non-families. 33.0% of all households were made up of individuals, and 12.8% had someone living alone who was 65 years of age or older. The average household size was 2.35 and the average family size was 2.99.