 Of the 8,601 households, 29.0% had children under the age of 18 living with them, 51.8% were married couples living together, 14.2% had a female householder with no husband present, 29.4% were non-families, and 24.7% of all households were made up of individuals.The average household size was 2.45 and the average family size was 2.88.The median age was 43.5 years.