 The average household size was 2.45 and the average family size was 3.16.In the county, the population was spread out with 25.60% under the age of 18, 11.30% from 18 to 24, 30.70% from 25 to 44, 20.70% from 45 to 64, and 11.60% who were 65 years of age or older.The median age was 34 years.