| Rank* | County** | Percentage of high schoolers who have used illegal drugs in the past month (2002) |
|---|---|---|
| 1 | Bamberg County | 10.5 |
| 2 | Barnwell County | 14.1 |
| 3 | Clarendon County | 14.1 |
| 4 | Orangeburg County | 14.3 |
| 5 | Union County | 15.2 |
| 6 | Jasper County | 15.2 |
| 7 | Greenwood County | 15.4 |
| 8 | Dillon County | 16.9 |
| 9 | Florence County | 17.0 |
| 10 | Colleton County | 18.0 |
| 11 | Pickens County | 18.1 |
| 12 | Fairfield County | 18.4 |
| 13 | Spartanburg County | 18.7 |
| 14 | Anderson County | 18.8 |
| 15 | Sumter County | 19.3 |
| 16 | Georgetown County | 19.6 |
| 17 | Richland County | 20.2 |
| 18 | Darlington County | 20.4 |
| 19 | Dorchester County | 20.7 |
| 20 | Edgefield County | 20.9 |
| 21 | Marion County | 21.1 |
| 22 | Greenville County | 21.9 |
| 23 | Lexington County | 22.1 |
| 24 | Oconee County | 22.9 |
| 25 | Beaufort County | 23.2 |
| 26 | Berkeley County | 23.8 |
| 27 | Chester County | 24.6 |
| 28 | Cherokee County | 24.8 |
| 29 | Lancaster County | 26.3 |
| 30 | York County | 28.9 |
| - | South Carolina | 20.1 |
* 1 is best, 46 is worst.
** Not all counties participated in the survey.