Population by Age
                  Percent Change
Age Group 1990 Census   2000 Census   2008 Estimate   2013 Projection   1990 to 2000 2008 to 2013
0 to 4 9,468 10.8% 11,589 10.6% 12,931 10.4% 14,171 10.6% 22.4% 9.6%
5 to 14 20,246 23.1% 19,602 17.9% 21,338 17.2% 22,893 17.1% -3.2% 7.3%
15 to 19 7,875 9.0% 9,749 8.9% 9,031 7.3% 9,474 7.1% 23.8% 4.9%
20 to 24 6,786 7.7% 10,158 9.3% 9,393 7.6% 9,151 6.8% 49.7% -2.6%
25 to 34 15,452 17.6% 18,511 16.9% 20,817 16.8% 20,474 15.3% 19.8% -1.6%
35 to 44 12,404 14.2% 15,167 13.8% 16,406 13.2% 17,956 13.4% 22.3% 9.4%
45 to 54 7,506 8.6% 11,778 10.7% 14,746 11.9% 15,233 11.4% 56.9% 3.3%
55 to 64 4,203 4.8% 7,254 6.6% 11,751 9.5% 14,236 10.7% 72.6% 21.2%
65 to 74 2,515 2.9% 3,706 3.4% 4,961 4.0% 6,796 5.1% 47.4% 37.0%
75 to 84 936 1.1% 1,762 1.6% 2,098 1.7% 2,447 1.8% 88.3% 16.6%
85 and older 244 0.3% 399 0.4% 680 0.6% 786 0.6% 63.4% 15.6%
Median Age:          
Total Population 24.6   26.8   29.3   30.6   9.0% 4.2%