There were 12,780 households, of which 24.3% had children under the age of 18 living with them, 38.2% were married couples living together, 10.6% had a female householder with no husband present, 3.6% had a male householder with no wife present, and 47.6% were non-families. 39.8% of all households were made up of individuals, and 13.5% had someone living alone who was 65 years of age or older. The average household size was 2.07 and the average family size was 2.77.