 The average household size was 2.40 and the average family size was 2.90.In the county, the population was spread out with 23.80% under the age of 18, 10.00% from 18 to 24, 26.70% from 25 to 44, 23.00% from 45 to 64, and 16.50% who were 65 years of age or older.The median age was 38 years.