 The average household size was 2.40 and the average family size was 2.92.The county population contained 24.00% under the age of 18, 7.50% from 18 to 24, 25.50% from 25 to 44, 24.10% from 45 to 64, and 18.90% who were 65 years of age or older.The median age was 40 years.