 The average household size was 2.20, and the average family size was 2.82.In the city, the population was spread out, with 19.8 percent under the age of 18, 13.7 percent from 18 to 24, 28.1 percent from 25 to 44, 22.5 percent from 45 to 64, and 15.9 percent who were 65 years of age or older.The median age was 37 years.