 The average household size was 2.47 and the average family size was 3.00.The county population contained 27.20% under the age of 18, 6.40% from 18 to 24, 25.20% from 25 to 44, 25.30% from 45 to 64, and 15.90% who were 65 years of age or older.The median age was 39 years.