| Index | Plum Branch | 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 | Plum Branch | South Carolina | National |
| Completed 8th grade | 95.5% | 83.0% | 84.3% |
| Completed high school | 95.5% | 81.6% | 83.0% |
| Completed some college | 59.7% | 56.6% | 59.4% |
| Completed associate degree | 40.3% | 35.6% | 38.5% |
| Completed bachelors | 35.8% | 26.5% | 30.3% |
| Completed masters | 4.5% | 9.6% | 11.5% |
| Completed professional degree | 4.5% | 2.5% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Plum Branch. Using the proficiency score averages, the average test scores for Plum Branch, SC schools is n/a. The average student to teacher ratio is n/a. In Plum Branch, SC, an average of 95.5% of students have completed 8th grade and an average of 95.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Lincolnton, GA | 2,033 | 44% | 7.6% |
| McCormick, SC | 3,043 | 26% | 46.2% |
| Plum Branch, SC | 92 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Palmyra, VA | 92 | 81% | 68.2% |
| Garden City, SD | 93 | 20% | 58.3% |
| Floyd, NM | 91 | 29% | 39.6% |
| Boon, MI | 93 | 47% | 2.1% |
| Alder, MT | 93 | 50% | 4.2% |
| Plum Branch, SC | 92 | n/a |
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