| Ethnicity/Race | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Total | 65,204 | 71,554 | 76,787 | 78,344 | 81,708 | 85,170 | 88,625 | 92,686 | 96,874 | 100,597 |
| White | 36,487 | 39,606 | 41,779 | 41,355 | 42,113 | 42,992 | 43,848 | 44,969 | 45,802 | 46,670 |
| African American | 17,286 | 18,828 | 20,226 | 21,063 | 22,185 | 23,241 | 24,415 | 25,907 | 27,605 | 29,133 |
| Other/Multi-race | 623 | 683 | 738 | 845 | 885 | 1,017 | 1,121 | 1,164 | 1,245 | 1,278 |
| Asian | 3,272 | 3,708 | 4,105 | 4,456 | 4,807 | 5,166 | 5,519 | 5,818 | 6,256 | 6,591 |
| Hispanic/Latino | 7,528 | 8,722 | 9,932 | 10,620 | 11,716 | 12,752 | 13,720 | 14,826 | 15,964 | 16,923 |
| Unknown | 8 | 7 | 7 | 5 | 2 | 2 | 2 | 2 | 2 | 2 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| White | 56.0% | 55.4% | 54.4% | 52.8% | 51.5% | 50.5% | 49.5% | 48.5% | 47.3% | 46.4% |
| African American | 26.5% | 26.3% | 26.3% | 26.9% | 27.2% | 27.3% | 27.5% | 28.0% | 28.5% | 29.0% |
| Other/Multi-race | 1.0% | 1.0% | 1.0% | 1.1% | 1.1% | 1.2% | 1.3% | 1.3% | 1.3% | 1.3% |
| Asian | 5.0% | 5.2% | 5.3% | 5.7% | 5.9% | 6.1% | 6.2% | 6.3% | 6.5% | 6.6% |
| Hispanic/Latino | 11.5% | 12.2% | 12.9% | 13.6% | 14.3% | 15.0% | 15.5% | 16.0% | 16.5% | 16.8% |
| Unknown | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |