 The average household size was 2.47 and the average family size was 3.07.In the county, the population was spread out with 27.90% under the age of 18, 7.60% from 18 to 24, 23.70% from 25 to 44, 23.40% from 45 to 64, and 17.30% who were 65 years of age or older.The median age was 38 years.