There were 13,144 households, out of which 47.10% had children under the age of 18 living with them, 71.00% were married couples living together, 7.90% had a female householder with no husband present, and 17.80% were non-families. Of the 13,144 households, 281 are unmarried partner households: 247 heterosexual, 22 same-sex male, and 12 same-sex female. 16.00% of all households were made up of individuals, and 7.40% had someone living alone who was 65 years of age or older. The average household size was 3.22 and the average family size was 3.63.