| Index | Greenfield | Ohio | National |
| Average Test Scores | 61% | 61% | 48% |
| Student/Teacher ratio | 17:1 | 17:1 | 16:1 |
| Total public schools | 4 | 3,650 | 79,221 |
| Total private schools | n/a | 1,000 | 24,874 |
| Total post-secondary schools | n/a | 393 | 7,963 |
| Index | Greenfield | Ohio | National |
| Completed 8th grade | 75.4% | 86.9% | 84.3% |
| Completed high school | 73.2% | 85.6% | 83.0% |
| Completed some college | 35.5% | 55.7% | 59.4% |
| Completed associate degree | 17.9% | 35.1% | 38.5% |
| Completed bachelors | 9.9% | 26.7% | 30.3% |
| Completed masters | 3.5% | 10.0% | 11.5% |
| Completed professional degree | 2.3% | 2.7% | 3.3% |
| Completed doctorate | 0.6% | 1.1% | 1.3% |
There are a total of 4 public schools, n/a private schools and n/a post-secondary schools in Greenfield. Using the proficiency score averages, the average test scores for Greenfield, OH schools is 61%. The average student to teacher ratio is 17:1. In Greenfield, OH, an average of 75.4% of students have completed 8th grade and an average of 73.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Leesburg, OH | 1,449 | 73% | 51.7% |
| Hillsboro, OH | 6,535 | 72% | 50.4% |
| South Salem, OH | 221 | 70% | 44.8% |
| Sabina, OH | 2,624 | 64% | 33.3% |
| Washington Court House, OH | 14,155 | 64% | 33.1% |
| Greenfield, OH | 4,184 | 61% | 26.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Alexandria, AL | 4,185 | 48% | 0.3% |
| Dawson, GA | 4,182 | 22% | 55.2% |
| Waverly, OH | 4,186 | 49% | 1.7% |
| Comanche, TX | 4,187 | 42% | 12.8% |
| Carlisle, IA | 4,181 | 72% | 49.3% |
| Greenfield, OH | 4,184 | 61% | 26.0% |
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