 Of the 158,099 households, 36.3% had children under the age of 18 living with them, 53.6% were married couples living together, 11.3% had a female householder with no husband present, 30.0% were non-families, and 23.1% of all households were made up of individuals.The average household size was 2.67 and the average family size was 3.15.The median age was 36.7 years.