There were 13,696 households, of which 34.1% had children under the age of 18 living with them, 42.3% were married couples living together, 17.9% had a female householder with no husband present, 5.6% had a male householder with no wife present, and 34.2% were non-families. 29.7% of all households were made up of individuals, and 11.8% had someone living alone who was 65 years of age or older. The average household size was 2.54 and the average family size was 3.16.