| Index | Harleyville | South Carolina | National |
| Average Test Scores | n/a | 47% | 48% |
| Student/Teacher ratio | n/a | 16:1 | 16:1 |
| Total public schools | n/a | 932 | 79,221 |
| Total private schools | n/a | 369 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Harleyville | South Carolina | National |
| Completed 8th grade | 82.5% | 83.0% | 84.3% |
| Completed high school | 79.3% | 81.6% | 83.0% |
| Completed some college | 42.4% | 56.6% | 59.4% |
| Completed associate degree | 18.2% | 35.6% | 38.5% |
| Completed bachelors | 8.6% | 26.5% | 30.3% |
| Completed masters | 2.3% | 9.6% | 11.5% |
| Completed professional degree | 0.9% | 2.5% | 3.3% |
| Completed doctorate | 0.9% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Harleyville. Using the proficiency score averages, the average test scores for Harleyville, SC schools is n/a. The average student to teacher ratio is n/a. In Harleyville, SC, an average of 82.5% of students have completed 8th grade and an average of 79.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Ridgeville, SC | 1,849 | 45% | 7.3% |
| St. George, SC | 2,209 | 41% | 15.6% |
| Eutawville, SC | 515 | 37% | 22.9% |
| Holly Hill, SC | 1,469 | 25% | 48.4% |
| Harleyville, SC | 658 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Alma, WI | 658 | 40% | 17.2% |
| Crowell, TX | 658 | 37% | 22.9% |
| Marshall, NC | 658 | 55% | 13.8% |
| Melba, ID | 658 | 46% | 3.6% |
| Marengo, IN | 658 | 53% | 10.4% |
| Harleyville, SC | 658 | n/a |
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