| Ethnicity/Race | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | |
| Total | 59,828 | 65,207 | 71,558 | 76,797 | 78,359 | 81,739 | 85,213 | 88,715 | 92,845 | 97,248 |
| White | 33,770 | 36,486 | 39,603 | 41,781 | 41,363 | 42,131 | 43,013 | 43,902 | 45,056 | 45,974 |
| African American | 15,983 | 17,285 | 18,829 | 20,228 | 21,067 | 22,193 | 23,247 | 24,437 | 25,939 | 27,710 |
| Other/Multi-race | 620 | 623 | 682 | 737 | 843 | 883 | 1,023 | 1,115 | 1,159 | 1,244 |
| Asian | 2,883 | 3,274 | 3,709 | 4,104 | 4,455 | 4,808 | 5,165 | 5,520 | 5,823 | 6,272 |
| Hispanic/Latino | 6,562 | 7,530 | 8,727 | 9,939 | 10,625 | 11,721 | 12,762 | 13,738 | 14,865 | 16,045 |
| Unknown | 10 | 9 | 8 | 8 | 6 | 3 | 3 | 3 | 3 | 3 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| White | 56.4% | 56.0% | 55.3% | 54.4% | 52.8% | 51.5% | 50.5% | 49.5% | 48.5% | 47.3% |
| African American | 26.7% | 26.5% | 26.3% | 26.3% | 26.9% | 27.2% | 27.3% | 27.5% | 27.9% | 28.5% |
| Other/Multi-race | 1.0% | 1.0% | 1.0% | 1.0% | 1.1% | 1.1% | 1.2% | 1.3% | 1.2% | 1.3% |
| Asian | 4.8% | 5.0% | 5.2% | 5.3% | 5.7% | 5.9% | 6.1% | 6.2% | 6.3% | 6.4% |
| Hispanic/Latino | 11.0% | 11.5% | 12.2% | 12.9% | 13.6% | 14.3% | 15.0% | 15.5% | 16.0% | 16.5% |
| Unknown | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |