sentences:  The average household size was 2.28 and the average family size was 2.74.In the county, the population was spread out with 20.30% under the age of 18, 6.10% from 18 to 24, 23.20% from 25 to 44, 27.90% from 45 to 64, and 22.40% who were 65 years of age or older.The median age was 45 years.