there were 13,859 households, of which 31.9% had children under the age of 18 living with them, 58.7% were married couples living together, 9.1% had a female householder with no husband present, 2.9% had a male householder with no wife present, and 29.3% were non-families. 24.4% of all households were made up of individuals and 10.6% had someone living alone who was 65 years of age or older. the average household size was 2.48 and the average family size was 2.96.