The county population contained 20.30% under the age of 18, 29.40% from 18 to 24, 23.80% from 25 to 44, 17.40% from 45 to 64, and 9.00% who were 65 years of age or older. The median age was 25 years. For every 100 females there were 91.40 males. For every 100 females age 18 and over, there were 88.60 males.
The county population contained 2030% under the age of 18 2940% from 18 to 24 2380% from 25 to 44 1740% from 45 to 64 and 900% who were 65 years of age or older The median age was 25 years For every 100 females there were 9140 males For every 100 females age 18 and over there were 8860 males