sentences:  The average household size was 2.24 and the average family size was 2.99.In the city, the population was spread out with 17.5% under the age of 18, 38.0% from 18 to 24, 23.1% from 25 to 44, 14.6% from 45 to 64, and 6.9% who were 65 years of age or older.The median age was 23.3 years.