 There were 12,141 households out of which 30.90% had children under the age of 18 living with them, 54.40% were married couples living together, 8.30% had a female householder with no husband present, and 34.40% were non-families.28.60% of all households were made up of individuals and 13.00% had someone living alone who was 65 years of age or older.The average household size was 2.43 and the average family size was 3.00.