sentences:  Of the 6,222 households, 29.8% had children under the age of 18 living with them, 56.4% were married couples living together, 9.4% had a female householder with no husband present, 29.5% were non-families, and 24.8% of all households were made up of individuals.The average household size was 2.51 and the average family size was 2.97.The median age was 41.3 years.