sentences:  The average household size was 2.45 and the average family size was 3.20.In the city the population was spread out, with 25.6% under the age of 18, 7.5% from 18 to 24, 22.6% from 25 to 44, 20.8% from 45 to 64, and 23.5% who were 65 years of age or older.The median age was 40 years.