In 2004, the most recent year for which statistics are available, 8.1% of the white population and 8.7% of the black population had used illicit drugs in the previous month.

Overall, the rate of illicit drug use in the general population was 7.9%.

Source: "Table 66 - Use of selected substances in the past month among person 12 years of age and over, by age, sex, race, and Hispanic origin: United States, 2002-2004." National Center for Health Statistics. Health, United States, 2006 With Chartbook on Trends in the Health of Americans. Hyattsville, MD: 2006. Available online at: http://www.cdc.gov/nchs/data/hus/hus06.pdf#066.