 The average household size was 2.59 and the average family size was 3.11.In the county, the population was spread out with 27.50% under the age of 18, 7.70% from 18 to 24, 24.70% from 25 to 44, 22.90% from 45 to 64, and 17.20% who were 65 years of age or older.The median age was 38 years.