sentences:  Of the 10,780 households, 33.1% had children under the age of 18 living with them, 58.1% were married couples living together, 8.6% had a female householder with no husband present, 28.7% were non-families, and 24.8% of all households were made up of individuals.The average household size was 2.52 and the average family size was 3.00.The median age was 40.2 years.