 The average household size was 2.58 and the average family size was 3.06.In the county, the population was distributed as 22.50% under the age of 18, 11.10% from 18 to 24, 31.50% from 25 to 44, 21.00% from 45 to 64, and 14.00% who were 65 years of age or older.The median age was 36 years.