sentences:  In 2000, there were 19,741 households out of which 28.80% had children under the age of 18 living with them, 56.30% were married couples living together, 10.00% had a female householder with no husband present, and 29.80% were non-families.24.50% of all households were made up of individuals and 10.00% had someone living alone who was 65 years of age or older.The average household size was 2.47 and the average family size was 2.91.