Out of the 12,895 households, 27.8% had children under the age of 18 living with them, 56.8% were married couples living together, 10.9% had a female householder with no husband present, and 27.6% were non-families. Out of the total number of households, 32.6% housed someone who was 65 years of age or older. The average household size was 2.55 and the average family size was 2.97.