 The average household size was 2.56 and the average family size was 3.22.In the county, the population was spread out, with 25.4% under age of 18, 9.7% from 18 to 24, 25.5% from 25 to 44, 26.8% from 45 to 64, and 12.7% who were 65 years of age or older.The median age was 37 years.