As of 2010, there were 44,539 households, out of which 17.4% were vacant. As of 2000, 24.1% had children under the age of 18 living with them, 53.1% were married couples living together, 7.1% had a female householder with no husband present, and 37.2% were non-families. 29.5% of all households were made up of individuals, and 11.6% had someone living alone who was 65 years of age or older. The average household size was 2.26 and the average family size was 2.81.