 The average household size was 2.45 and the average family size was 2.88.The county population contained 24.60% under the age of 18, 6.40% from 18 to 24, 24.10% from 25 to 44, 26.90% from 45 to 64, and 18.00% who were 65 years of age or older.The median age was 42 years.