 In the county, the population was spread out with 22.10% under the age of 18, 17.10% from 18 to 24, 32.10% from 25 to 44, 20.60% from 45 to 64, and 8.10% who were 65 years of age or older.The median age was 31 years.For every 100 females, there were 98.90 males.