sentences:  Of the 9,652 households 11.9% had children under the age of 18 living with them, 71.1% were married couples living together, 3.5% had a female householder with no husband present, and 23.7% were non-families.19.2% of households were one person and 12.4% were one person aged 65 or older.The average household size was 2.11 and the average family size was 2.37.