sentences:  The average household size was 2.13 and the average family size was 2.75.In the county, the population was spread out with 20.10% under the age of 18, 5.40% from 18 to 24, 19.50% from 25 to 44, 27.40% from 45 to 64, and 27.70% who were 65 years of age or older.The median age was 49 years.