There were 4,217 households, of which 20.4% had children under the age of 18 living with them, 33.7% were married couples living together, 7.6% had a female householder with no husband present, 2.9% had a male householder with no wife present, and 55.8% were non-families. 35.5% of all households were made up of individuals, and 11.8% had someone living alone who was 65 years of age or older. The average household size was 2.16 and the average family size was 2.82.