There were 31,571 households, of which 34.3% had children under the age of 18 living with them, 44.2% were married couples living together, 13.8% had a female householder with no husband present, 5.9% had a male householder with no wife present, and 36.2% were non-families. 29.4% of all households were made up of individuals, and 11.1% had someone living alone who was 65 years of age or older. The average household size was 2.54 and the average family size was 3.14.