Of the 24,475 households, 37.9% had children under the age of 18; 22.3% were married couples living together; 37.9% had a female householder with no husband present and 30.9% were non-families. Of all households, 24.8% were made up of individuals and 7.4% had someone living alone who was 65 years of age or older. The average household size was 3.02 and the average family size was 3.56.