 The average household size was 3.23 and the average family size was 3.62.In the county, the population was spread out with 36.30% under the age of 18, 9.60% from 18 to 24, 25.50% from 25 to 44, 19.30% from 45 to 64, and 9.30% who were 65 years of age or older.The median age was 29 years.