 The average household size was 2.57 and the average family size was 3.05.In the county, the population was distributed as 24.90% under the age of 18, 8.30% from 18 to 24, 27.80% from 25 to 44, 23.30% from 45 to 64, and 15.60% who were 65 years of age or older.The median age was 38 years.