sentences:  Of the 6,264 households, 31.8% had children under the age of 18 living with them, 48.5% were married couples living together, 12.0% had a female householder with no husband present, 33.1% were non-families, and 27.6% of all households were made up of individuals.The average household size was 2.52 and the average family size was 3.06.The median age was 41.6 years.