 Of the 17,100 households, 27.2% had children under the age of 18 living with them, 55.3% were married couples living together, 7.9% had a female householder with no husband present, 32.2% were non-families, and 26.0% of all households were made up of individuals.The average household size was 2.37 and the average family size was 2.82.The median age was 45.8 years.