There were 12,610 households, of which 28.7% had children under the age of 18 living with them, 41.6% were married couples living together, 10.9% had a female householder with no husband present, 3.9% had a male householder with no wife present, and 43.6% were non-families. 34.5% of all households were made up of individuals, and 11.3% had someone living alone who was 65 years of age or older. The average household size was 2.28 and the average family size was 2.99.