sentences:  Of the 27,421 households, 30.2% had children under the age of 18 living with them, 49.4% were married couples living together, 11.5% had a female householder with no husband present, 34.4% were non-families, and 29.1% of all households were made up of individuals.The average household size was 2.35 and the average family size was 2.88.The median age was 40.1 years.