sentences:  The average household size was 2.38 and the average family size was 2.81.In the county, the population was spread out with 21.10% under the age of 18, 6.40% from 18 to 24, 25.80% from 25 to 44, 28.00% from 45 to 64, and 18.80% who were 65 years of age or older.The median age was 43 years.