 The average household size was 2.33 and the average family size was 2.80.In the county, the population was spread out with 21.50% under the age of 18, 7.90% from 18 to 24, 27.40% from 25 to 44, 27.60% from 45 to 64, and 15.70% who were 65 years of age or older.The median age was 40 years.