 Of the 30,682 households, 35.5% had children under the age of 18 living with them, 52.2% were married couples living together, 10.7% had a female householder with no husband present, 32.1% were non-families, and 24.9% of all households were made up of individuals.The average household size was 2.64 and the average family size was 3.17.The median age was 31.4 years.