sentences:  Of the 9,216  households, 29.2% had children under the age of 18 living with them, 57.1% were married couples living together, 8.0% had a female householder with no husband present, 30.8% were non-families, and 27.1% of all households were made up of individuals.The average household size was 2.40 and the average family size was 2.90.The median age was 43.5 years.