 The average household size was 2.22 and the average family size was 2.72.The county population contained 19.9% under the age of 18, 6.0% from 18 to 24, 19.6% from 25 to 44, 33.3% from 45 to 64, and 21.3% who were 65 years of age or older.The median age was 48.3 years.