| Ethnicity/Race | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Total | 36,951 | 39,958 | 42,219 | 44,262 | 45,475 | 45,290 | 46,106 | 47,039 | 48,677 | 50,624 |
| White | 15,784 | 16,645 | 17,122 | 17,525 | 17,707 | 17,448 | 17,672 | 18,062 | 18,441 | 19,243 |
| African American | 13,486 | 14,563 | 15,342 | 15,985 | 16,339 | 15,877 | 15,910 | 16,000 | 16,601 | 17,091 |
| Other/Multi-race | 426 | 479 | 512 | 586 | 599 | 662 | 689 | 658 | 697 | 711 |
| Asian | 2,385 | 2,678 | 2,965 | 3,320 | 3,465 | 3,608 | 3,807 | 3,812 | 4,140 | 4,265 |
| Hispanic/Latino | 4,870 | 5,593 | 6,278 | 6,846 | 7,365 | 7,695 | 8,028 | 8,507 | 8,798 | 9,314 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| White | 42.7% | 41.7% | 40.6% | 39.6% | 38.9% | 38.5% | 38.3% | 38.4% | 37.9% | 38.0% |
| African American | 36.5% | 36.4% | 36.3% | 36.1% | 35.9% | 35.1% | 34.5% | 34.0% | 34.1% | 33.8% |
| Other/Multi-race | 1.2% | 1.2% | 1.2% | 1.3% | 1.3% | 1.5% | 1.5% | 1.4% | 1.4% | 1.4% |
| Asian | 6.5% | 6.7% | 7.0% | 7.5% | 7.6% | 8.0% | 8.3% | 8.1% | 8.5% | 8.4% |
| Hispanic/Latino | 13.2% | 14.0% | 14.9% | 15.5% | 16.2% | 17.0% | 17.4% | 18.1% | 18.1% | 18.4% |