sentences:  There were 37,712 households, 42.00% had children under the age of 18 living with them, 55.70% were married couples living together, 14.70% had a female head of household with no husband present, and 23.30% were non-families.19.30% of households were one person and 6.40% were one person aged 65 or older.The average household size was 2.99 and the average family size was 3.43.