There were 17,354 households, of which 28.3% had children under the age of 18 living with them, 43.1% were married couples living together, 11.8% had a female householder with no husband present, 4.6% had a male householder with no wife present, and 40.5% were non-families. 32.6% of all households were made up of individuals, and 10.9% had someone living alone who was 65 years of age or older. The average household size was 2.29 and the average family size was 2.87.