 The average household size was 2.30 and the average family size was 2.98.In the city, the population was spread out, with 24.5% under the age of 18, 15.5% from 18 to 24, 30.3% from 25 to 44, 17.2% from 45 to 64, and 12.5% who were 65 years of age or older.The median age was 31 years.