There were 16,620 households out of which 30.90% had children under the age of 18 living with them, 51.50% were married couples living together, 14.40% had a female householder with no husband present, and 30.20% were not related. 27.00% of all households were made up of people living alone and 12.80% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 2.95.