sentences:  Of the 45,347 households, 30.3% had children under the age of 18 living with them, 50.9% were married couples living together, 10.5% had a female householder with no husband present, 33.6% were non-families, and 28.6% of all households were made up of individuals.The average household size was 2.45 and the average family size was 3.00.The median age was 41.0 years.