There were 18,721 households, out of which 7,833 (41.8%) had children under the age of 18 living in them, 9,723 (51.9%) were opposite-sex married couples living together, 2,649 (14.1%) had a female householder with no husband present, 1,176 (6.3%) had a male householder with no wife present. There were 1,278 (6.8%) unmarried opposite-sex partnerships, and 113 (0.6%) same-sex married couples or partnerships. 4,097 households (21.9%) were made up of individuals, and 1,623 (8.7%) had someone living alone who was 65 years of age or older. The average household size was 2.91. There were 13,548 families (72.4% of all households); the average family size was 3.41.