In 2000 there were 21,294 households out of which 21.10% had children under the age of 18 living with them, 62.80% were married couples living together, 8.10% had a female householder with no husband present, and 26.40% were not related. 21.60% of all households were made up of people living alone and 12.00% had someone living alone who was 65 years of age or older. The average household size was 2.32 and the average family size was 2.67.