 Of the 8,973 households, 25.5% had children under the age of 18 living with them, 45.7% were married couples living together, 5.6% had a female householder with no husband present, 45.0% were non-families, and 29.2% of all households were made up of individuals.The average household size was 2.34 and the average family size was 2.89.The median age was 36.9 years.