There were 20,938 households, out of which 7,588 (36.2%) had children under the age of 18 living in them, 11,165 (53.3%) were married couples, 2,897 (13.8%) had a female householder with no husband present, 1,268 (6.1%) had a male householder with no wife present. There were 1,083 (5.2%) unmarried couples, and 187 (0.9%) same-sex couples. 4,299 households (20.5%) were made up of individuals, and 1,857 (8.9%) had someone living alone who was 65 years of age or older. The average household size was 3.01. There were 15,330 families (73.2% of all households); the average family size was 3.45.