There were 42,244 households, of which 31.4% had children under the age of 18 living with them, 40.4% were married couples living together, 12.5% had a female householder with no husband present, 5.6% had a male householder with no wife present, and 41.5% were non-families. 32.4% of all households were made up of individuals, and 9.6% had someone living alone who was 65 years of age or older. The average household size was 2.39 and the average family size was 3.06.