 The average household size was 2.15 and the average family size was 2.80.In the city, the population was spread out with 23.7% under the age of 18, 6.1% from 18 to 24, 24.8% from 25 to 44, 24.8% from 45 to 64, and 20.7% who were 65 years of age or older.The median age was 42 years.