 The average household size was 3.66 and the average family size was 3.70.In the county, the population was spread out with 26.20% under the age of 18, 39.90% from 18 to 24, 16.00% from 25 to 44, 11.90% from 45 to 64, and 6.00% who were 65 years of age or older.The median age was 21 years.