 Of the 4,173 households 31.8% had children under the age of 18 living with them, 51.7% were married couples living together, 8.9% had a female householder with no husband present, and 36.5% were non-families.31.9% of households were one person and 16.2% were one person aged 65 or older.The average household size was 2.36 and the average family size was 2.99.