 The average household size was 2.43 and the average family size was 3.00.The county population contained 25.30% under the age of 18, 9.70% from 18 to 24, 25.60% from 25 to 44, 21.90% from 45 to 64, and 17.50% who were 65 years of age or older.The median age was 38 years.