| Index | Greenville | Ohio | National |
| Average Test Scores | 59% | 61% | 48% |
| Student/Teacher ratio | 16:1 | 17:1 | 16:1 |
| Total public schools | 6 | 3,650 | 79,221 |
| Total private schools | 2 | 1,000 | 24,874 |
| Total post-secondary schools | n/a | 393 | 7,963 |
| Index | Greenville | Ohio | National |
| Completed 8th grade | 83.4% | 86.9% | 84.3% |
| Completed high school | 81.2% | 85.6% | 83.0% |
| Completed some college | 39.6% | 55.7% | 59.4% |
| Completed associate degree | 18.8% | 35.1% | 38.5% |
| Completed bachelors | 11.7% | 26.7% | 30.3% |
| Completed masters | 3.8% | 10.0% | 11.5% |
| Completed professional degree | 0.6% | 2.7% | 3.3% |
| Completed doctorate | 0.3% | 1.1% | 1.3% |
There are a total of 6 public schools, 2 private schools and n/a post-secondary schools in Greenville. Using the proficiency score averages, the average test scores for Greenville, OH schools is 59%. The average student to teacher ratio is 16:1. In Greenville, OH, an average of 83.4% of students have completed 8th grade and an average of 81.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Russia, OH | 777 | 92% | 92.2% |
| Versailles, OH | 2,875 | 88% | 83.3% |
| Ansonia, OH | 1,158 | 81% | 68.1% |
| Pleasant Hill, OH | 1,534 | 80% | 65.6% |
| New Madison, OH | 1,122 | 77% | 60.4% |
| Greenville, OH | 13,135 | 59% | 22.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Key Biscayne, FL | 13,140 | 86% | 79.7% |
| Meadville, PA | 13,127 | 49% | 3.0% |
| St. Ann, MO | 13,143 | 29% | 40.6% |
| Martinsville, VA | 13,146 | 77% | 60.9% |
| Clarkston, GA | 13,147 | 21% | 57.3% |
| Greenville, OH | 13,135 | 59% | 22.9% |
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