There were 8,838 households, 4,255 (48.1%) had children under the age of 18 living in them, 4,593 (52.0%) were opposite-sex married couples living together, 1,558 (17.6%) had a female householder with no husband present, 672 (7.6%) had a male householder with no wife present. There were 615 (7.0%) unmarried opposite-sex partnerships, and 60 (0.7%) same-sex married couples or partnerships. 1,615 households (18.3%) were one person and 738 (8.4%) had someone living alone who was 65 or older. The average household size was 3.18. There were 6,823 families (77.2% of households); the average family size was 3.61.