There were 7,831 households, of which 31.7% had children under the age of 18 living with them, 35.8% were married couples living together, 16.7% had a female householder with no husband present, 5.3% had a male householder with no wife present, and 42.1% were non-families. 34.7% of all households were made up of individuals, and 12.3% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 3.06.