 Of the 40,398 households, 36.5% had children under the age of 18 living with them, 44.6% were married couples living together, 20.2% had a female householder with no husband present, 29.9% were non-families, and 25.8% of all households were made up of individuals.The average household size was 2.59 and the average family size was 3.11.The median age was 35.4 years.