 The average household size was 2.32 and the average family size was 2.87.In the city, the population was spread out with 23.0% under the age of 18, 8.1% from 18 to 24, 25.1% from 25 to 44, 23.3% from 45 to 64, and 20.5% who were 65 years of age or older.The median age was 40 years.