 The average household size was 2.38 and the average family size was 3.00.The county population had 25.40% under the age of 18, 12.00% from 18 to 24, 25.90% from 25 to 44, 20.40% from 45 to 64, and 16.20% who were 65 years of age or older.The median age was 36 years.