 The average household size was 3.44 and the average family size was 3.83.In the city, the population was spread out, with 24.4% under the age of 18, 13.0% from 18 to 24, 42.0% from 25 to 44, 15.3% from 45 to 64, and 5.4% who were 65 years of age or older.The median age was 31 years.