There were 11,894 households, of which 29.3% had children under the age of 18 living with them, 48.7% were married couples living together, 9.9% had a female householder with no husband present, 2.9% had a male householder with no wife present, and 38.4% were non-families. 33.6% of all households were made up of individuals, and 14.4% had someone living alone who was 65 years of age or older. The average household size was 2.29 and the average family size was 2.97.