There were 33,074 households, of which 33.2% had children under the age of 18 living with them, 44.7% were married couples living together, 15.7% had a female householder with no husband present, 6.3% had a male householder with no wife present, and 35.3% were non-families. 28.7% of all households were made up of individuals, and 11.9% had someone living alone who was 65 years of age or older. The average household size was 2.68 and the average family size was 3.3.