 The average household size was 2.21 and the average family size was 2.73.In the city, the population was spread out with 20.1% under the age of 18, 6.7% from 18 to 24, 22.8% from 25 to 44, 21.9% from 45 to 64, and 28.4% who were 65 years of age or older.The median age was 45 years.