sentences:  There were 30,343 households out of which 30.6% had children under the age of 18 living with them, 57.2% were married couples living together, 11.1% had a female householder with no husband present, and 26.8% were non-families.22.3% of all households were made up of individuals and 8.4% had someone living alone who was 65 years of age or older.The average household size was 2.56 and the average family size was 2.97.