There were 57,290 households, of which 33.8% had children under the age of 18 living with them, 45.0% were married couples living together, 13.0% had a female householder with no husband present, 5.2% had a male householder with no wife present, and 36.7% were non-families. 28.8% of all households were made up of individuals, and 10.4% had someone living alone who was 65 years of age or older. The average household size was 2.55 and the average family size was 3.15.