 The average household size was 2.56 and the average family size was 3.00.The county population contained 26.80% under the age of 18, 7.00% from 18 to 24, 28.50% from 25 to 44, 24.00% from 45 to 64, and 13.70% who were 65 years of age or older.The median age was 38 years.