There were 24,793 households, of which 31.6% had children under the age of 18 living with them, 41.4% were married couples living together, 15.0% had a female householder with no husband present, 6.2% had a male householder with no wife present, and 37.4% were non-families. 30.0% of all households were made up of individuals, and 11.1% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 3.01.