There were 31,425 households, of which 16.6% had children under the age of 18 living with them, 25.3% were married couples living together, 7.5% had a female householder with no husband present, 3.1% had a male householder with no wife present, and 64.1% were non-families. 38.2% of all households were made up of individuals, and 7.5% had someone living alone who was 65 years of age or older. The average household size was 2.09 and the average family size was 2.76.