 The average household size was 2.78 and the average family size was 3.14.In the city, the population was spread out with 31.5% under the age of 18, 7.6% from 18 to 24, 34.0% from 25 to 44, 19.0% from 45 to 64, and 7.9% who were 65 years of age or older.The median age was 32 years.