 The average household size was 2.39 and the average family size was 2.91.In the county, the population was spread out with 23.90% under the age of 18, 9.10% from 18 to 24, 27.90% from 25 to 44, 24.40% from 45 to 64, and 14.80% who were 65 years of age or older.The median age was 38 years.