 The average household size was 2.06 and the average family size was 2.65.The county population contained 17.1% under the age of 18, 5.4% from 18 to 24, 17.2% from 25 to 44, 34.1% from 45 to 64, and 26.3% who were 65 years of age or older.The median age was 51.9 years.