 The average household size was 3.04 and the average family size was 3.39.In the city, the population was spread out with 35.6% under the age of 18, 7.8% from 18 to 24, 27.0% from 25 to 44, 20.0% from 45 to 64, and 9.6% who were 65 years of age or older.The median age was 31 years.