 Of the 80,665 households, 25.8% had children under the age of 18 living with them, 39.7% were married couples living together, 9.9% had a female householder with no husband present, 47.0% were non-families, and 33.2% of all households were made up of individuals.The average household size was 2.29 and the average family size was 2.95.The median age was 28.9 years.