There were 24,311 households, of which 30.6% had children under the age of 18 living with them, 46.4% were married couples living together, 8.6% had a female householder with no husband present, 3.4% had a male householder with no wife present, and 41.6% were non-families. 31.2% of all households were made up of individuals, and 7.4% had someone living alone who was 65 years of age or older. The average household size was 2.32 and the average family size was 2.98.