 The average household size was 2.27 and the average family size was 2.73.In the county, the population was spread out with 19.20% under the age of 18, 5.10% from 18 to 24, 22.90% from 25 to 44, 30.30% from 45 to 64, and 22.50% who were 65 years of age or older.The median age was 47 years.