 The average household size was 2.53 and the average family size was 3.20.In the city, the population was spread out, with 26.7% under the age of 18, 7.2% aged 18 to 24, 24.3% aged 25 to 44, 24.0% aged 45 to 64, and 17.8% who were 65 years of age or older.The median age was 40 years.