 The average household size was 2.55 and the average family size was 3.01.In the county, the population was spread out with 25.30% under the age of 18, 9.20% from 18 to 24, 28.50% from 25 to 44, 23.80% from 45 to 64, and 13.20% who were 65 years of age or older.The median age was 36 years.