sentences:  Of the 16,133 households, 34.2% had children under the age of 18 living with them, 58.3% were married couples living together, 8.6% had a female householder with no husband present, 29.0% were non-families, and 24.7% of all households were made up of individuals.The average household size was 2.54 and the average family size was 3.03.The median age was 39.9 years.