 The average household size was 2.13 and the average family size was 2.80.In the city, the population was spread out with 18.5% under the age of 18, 9.3% from 18 to 24, 38.1% from 25 to 44, 23.9% from 45 to 64, and 10.2% who were 65 years of age or older.The median age was 36 years.