 Of the 9,753 households, 25.3% had children under the age of 18 living with them, 55.9% were married couples living together, 7.0% had a female householder with no husband present, 33.2% were non-families, and 28.4% of all households were made up of individuals.The average household size was 2.31 and the average family size was 2.81.The median age was 47.1 years.