There were 23,930 households, of which 36.3% had children under the age of 18 living with them, 58.2% were married couples living together, 8.0% had a female householder with no husband present, 2.8% had a male householder with no wife present, and 31.0% were non-families. 25.1% of all households were made up of individuals, and 6.1% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 3.08.