 The average household size was 2.30 and the average family size was 2.80.In the city, the population was spread out with 22.6% under the age of 18, 9.7% from 18 to 24, 31.5% from 25 to 44, 26.6% from 45 to 64, and 9.7% who were 65 years of age or older.The median age was 38 years.