| Index | Gaffney | South Carolina | National |
| Average Test Scores | 38% | 47% | 48% |
| Student/Teacher ratio | 15:1 | 16:1 | 16:1 |
| Total public schools | 15 | 932 | 79,221 |
| Total private schools | 2 | 369 | 24,874 |
| Total post-secondary schools | 1 | 96 | 7,963 |
| Index | Gaffney | South Carolina | National |
| Completed 8th grade | 77.2% | 83.0% | 84.3% |
| Completed high school | 74.7% | 81.6% | 83.0% |
| Completed some college | 46.1% | 56.6% | 59.4% |
| Completed associate degree | 26.2% | 35.6% | 38.5% |
| Completed bachelors | 22.2% | 26.5% | 30.3% |
| Completed masters | 8.5% | 9.6% | 11.5% |
| Completed professional degree | 3.4% | 2.5% | 3.3% |
| Completed doctorate | 1.0% | 1.1% | 1.3% |
There are a total of 15 public schools, 2 private schools and 1 post-secondary schools in Gaffney. Using the proficiency score averages, the average test scores for Gaffney, SC schools is 38%. The average student to teacher ratio is 15:1. In Gaffney, SC, an average of 77.2% of students have completed 8th grade and an average of 74.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Chesnee, SC | 597 | 60% | 25.2% |
| Mayo, SC | 1,770 | 60% | 24.0% |
| Grover, NC | 588 | 55% | 13.5% |
| Cliffside, NC | 707 | 52% | 8.3% |
| Blacksburg, SC | 2,101 | 47% | 2.1% |
| Gaffney, SC | 12,733 | 38% | 20.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Windsor Locks, CT | 12,732 | 42% | 13.2% |
| Port Neches, TX | 12,729 | 54% | 12.1% |
| Commerce, CA | 12,738 | 34% | 28.5% |
| Franklin Park, NJ | 12,738 | 48% | 0.5% |
| Greenville, OH | 12,743 | 59% | 22.9% |
| Gaffney, SC | 12,733 | 38% | 20.5% |
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