there were 11,109 households out of which 34.8% had children under the age of 18 living with them, 52.8% were married couples living together, 12.3% had a female householder with no husband present, and 31.5% were non-families. 25.8% of all households were made up of individuals and 7.2% had someone living alone who was 65 years of age or older. the average household size was 2.49 and the average family size was 3.01.