 There were 18,670 households out of which 33.80% had children under the age of 18 living with them, 53.90% were married couples living together, 8.80% had a female householder with no husband present, and 33.90% were non-families.26.10% of all households were made up of individuals and 10.60% had someone living alone who was 65 years of age or older.The average household size was 2.53 and the average family size was 3.07.