 The average household size was 3.86.There were 4,370 families (85.2% of households); the average family size was 4.11.The age distribution was 7,351 people (28.8%) under the age of 18, 3,687 people (14.4%) aged 18 to 24, 8,621 people (33.7%) aged 25 to 44, 4,593 people (18.0%) aged 45 to 64, and 1,293 people (5.1%) who were 65 or older.