 The county population contained 36.60% under the age of 20, 5.55% from 20 to 24, 25.37% from 25 to 44, 21.35% from 45 to 64, and 11.13% who were 65 years of age or older.The median age was 30.6 years.For every 100 females there were 101.59 males.