 The average household size was 2.76 and the average family size was 3.21.In the city, the population was spread out with 31.5% under the age of 18, 6.9% from 18 to 24, 30.6% from 25 to 44, 20.3% from 45 to 64, and 10.8% who were 65 years of age or older.The median age was 33 years.