There were 65,917 households, out of which 37.1% had children under the age of 18 living with them, 67.4% were married couples living together, 8.9% had a female householder with no husband present, and 20.6% were non-families. 16.2% of all households were made up of individuals, and 6.7% had someone living alone who was 65 years of age or older. The average household size was 2.91 and the average family size was 3.26.