There were 21,980 households out of which 32.80% had children under the age of 18 living with them, 61.20% were married couples living together, 9.90% had a female householder with no husband present, and 24.80% were not related. 20.10% of all households were made up of people living alone and 7.70% had someone living alone who was 65 years of age or older. The average household size was 2.59 and the average family size was 2.97.