sentences:  Of the 6,734 households, 30.1% had children under the age of 18 living with them, 58.3% were married couples living together, 7.9% had a female householder with no husband present, 29.8% were non-families, and 25.8% of all households were made up of individuals.The average household size was 2.41 and the average family size was 2.88.The median age was 43.7 years.