| Rank* | County | Percent of 3rd Graders Proficient/ Advanced on 2007 Pact (Math) | Rank* | County | Percent of 5th Graders Proficient/ Advanced on 2007 Pact (Math) | Rank* | County | Percent of 8th Graders Proficient/ Advanced on 2007 Pact (Math) |
|---|---|---|---|---|---|---|---|---|
| 1 | Calhoun | 44.8 | 1 | Horry | 48.2 | 1 | Kershaw | 28.0 |
| 2 | Horry | 43.5 | 2 | York | 42.5 | 2 | Lexington | 27.9 |
| 3 | York | 40.1 | 3 | Oconee | 41.3 | 3 | York | 27.8 |
| 4 | Williamsburg | 38.6 | 4 | Lexington | 40.5 | 4 | Horry | 27.1 |
| 5 | Pickens | 37.4 | 5 | Pickens | 40.3 | 5 | Oconee | 27.0 |
| 6 | Lexington | 37.0 | 6 | Saluda | 39.0 | 6 | Anderson | 26.3 |
| 7 | Anderson | 36.6 | 7 | Charleston | 37.8 | 7 | Pickens | 23.7 |
| 8 | Charleston | 36.1 | 8 | Georgetown | 37.7 | 8 | Aiken | 23.0 |
| 9 | Greenville | 35.6 | 9 | Spartanburg | 36.9 | 9 | Greenwood | 22.8 |
| 10 | Dorchester | 34.9 | 10 | Greenville | 36.8 | 10 | Abbeville | 22.5 |
| 11 | Georgetown | 32.9 | 11 | Anderson | 36.7 | 11 | Lancaster | 22.2 |
| 12 | Abbeville | 32.2 | 12 | Abbeville | 35.8 | 12 | Spartanburg | 21.9 |
| 13 | Aiken | 32.2 | 13 | Lancaster | 35.8 | 13 | Dorchester | 21.8 |
| 14 | Spartanburg | 32.0 | 14 | Dorchester | 35.2 | 14 | Newberry | 21.7 |
| 15 | Oconee | 31.7 | 15 | Berkeley | 34.0 | 15 | Charleston | 21.4 |
| 16 | Greenwood | 30.3 | 16 | Beaufort | 31.8 | 16 | Chesterfield | 20.0 |
| 17 | Kershaw | 30.0 | 17 | Aiken | 30.7 | 17 | Greenville | 19.0 |
| 18 | Laurens | 28.4 | 18 | Kershaw | 30.7 | 18 | Edgefield | 18.3 |
| 19 | Florence | 27.1 | 19 | Florence | 29.1 | 19 | Richland | 18.1 |
| 20 | Union | 27.1 | 20 | Richland | 29.1 | 20 | Berkeley | 17.7 |
| 21 | Lancaster | 27.0 | 21 | Cherokee | 28.3 | 21 | Cherokee | 17.2 |
| 22 | Dillon | 26.8 | 22 | Greenwood | 27.7 | 22 | Laurens | 16.9 |
| 23 | Sumter | 26.5 | 23 | Sumter | 27.4 | 23 | Union | 15.2 |
| 24 | Beaufort | 25.2 | 24 | Newberry | 27.2 | 24 | Florence | 13.9 |
| 25 | Darlington | 25.2 | 25 | Barnwell | 26.5 | 25 | Darlington | 13.6 |
| 26 | Berkeley | 24.9 | 26 | Chesterfield | 26.3 | 26 | Beaufort | 13.0 |
| 27 | Chesterfield | 24.3 | 27 | Darlington | 26.2 | 27 | Hampton | 12.9 |
| 28 | Richland | 23.9 | 28 | Laurens | 24.7 | 28 | Dillon | 12.8 |
| 29 | Cherokee | 22.8 | 29 | Calhoun | 23.1 | 29 | Marlboro | 12.4 |
| 30 | Newberry | 22.8 | 30 | Edgefield | 23.1 | 30 | Saluda | 12.0 |
| 31 | Saluda | 22.1 | 31 | Chester | 20.9 | 31 | Georgetown | 11.1 |
| 32 | Edgefield | 21.7 | 32 | Bamberg | 20.4 | 32 | Barnwell | 10.2 |
| 33 | Clarendon | 21.1 | 33 | Dillon | 20.0 | 33 | Clarendon | 9.4 |
| 34 | Jasper | 19.8 | 34 | Colleton | 19.7 | 34 | Sumter | 9.0 |
| 35 | Orangeburg | 18.8 | 35 | Marion | 18.8 | 35 | Chester | 8.9 |
| 36 | Marlboro | 18.0 | 36 | Hampton | 17.2 | 36 | Colleton | 8.7 |
| 37 | Fairfield | 17.5 | 37 | Union | 15.3 | 37 | Jasper | 8.4 |
| 38 | Barnwell | 16.4 | 38 | Clarendon | 15.2 | 38 | Marion | 7.1 |
| 39 | Marion | 13.6 | 39 | McCormick | 15.1 | 39 | Orangeburg | 6.8 |
| 40 | Bamberg | 13.2 | 40 | Orangeburg | 13.7 | 40 | Calhoun | 6.1 |
| 41 | Chester | 12.8 | 41 | Fairfield | 13.5 | 41 | Williamsburg | 5.7 |
| 42 | Hampton | 10.8 | 42 | Williamsburg | 9.7 | 42 | Allendale | 5.4 |
| 43 | Colleton | 10.4 | 43 | Marlboro | 9.5 | 43 | Bamberg | 4.4 |
| 44 | McCormick | 10.3 | 44 | Jasper | 8.2 | 44 | Lee | 3.3 |
| 45 | Allendale | 8.3 | 45 | Allendale | 6.3 | 45 | McCormick | 3.0 |
| 46 | Lee | 4.4 | 46 | Lee | 2.6 | 46 | Fairfield | 2.5 |
| South Carolina | 30.9 | South Carolina | 33.3 | South Carolina | 19.6 |
* 1 is best, 46 is worst.