sentences:  Of the 12,232 households, 35.8% had children under the age of 18 living with them, 60.7% were married couples living together, 9.3% had a female householder with no husband present, 25.1% were non-families, and 20.9% of all households were made up of individuals.The average household size was 2.66 and the average family size was 3.07.The median age was 38.0 years.