 The average household size was 2.47 and the average family size was 3.07.The county population contained 25.90% under the age of 18, 9.70% from 18 to 24, 24.80% from 25 to 44, 22.20% from 45 to 64, and 17.40% who were 65 years of age or older.The median age was 38 years.