 Of the 38,484 households, 31.9% had children under the age of 18 living with them, 47.2% were married couples living together, 10.2% had a female householder with no husband present, 38.2% were non-families, and 25.8% of all households were made up of individuals.The average household size was 2.56 and the average family size was 3.11.The median age was 29.3 years.