| Index | Greenfield | Minnesota | National |
| Average Test Scores | n/a | 52% | 48% |
| Student/Teacher ratio | n/a | 16:1 | 16:1 |
| Total public schools | n/a | 2,224 | 79,221 |
| Total private schools | n/a | 477 | 24,874 |
| Total post-secondary schools | n/a | 140 | 7,963 |
| Index | Greenfield | Minnesota | National |
| Completed 8th grade | 96.9% | 90.5% | 84.3% |
| Completed high school | 96.0% | 89.5% | 83.0% |
| Completed some college | 74.6% | 66.9% | 59.4% |
| Completed associate degree | 54.8% | 45.2% | 38.5% |
| Completed bachelors | 43.4% | 34.2% | 30.3% |
| Completed masters | 10.8% | 11.5% | 11.5% |
| Completed professional degree | 3.0% | 3.5% | 3.3% |
| Completed doctorate | 0.7% | 1.4% | 1.3% |
There are a total of n/a 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, MN schools is n/a. The average student to teacher ratio is n/a. In Greenfield, MN, an average of 96.9% of students have completed 8th grade and an average of 96.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Mound, MN | 9,498 | 81% | 68.2% |
| Hanover, MN | 3,414 | 81% | 67.7% |
| Excelsior, MN | 2,414 | 80% | 67.4% |
| Delano, MN | 6,167 | 80% | 66.7% |
| Wayzata, MN | 4,591 | 80% | 65.6% |
| Greenfield, MN | 3,013 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Mansfield, PA | 3,013 | 49% | 1.0% |
| Alva, FL | 3,013 | 56% | 15.6% |
| Mohnton, PA | 3,013 | 64% | 33.3% |
| Fiskdale, MA | 3,015 | 61% | 27.8% |
| Milford, IA | 3,015 | 70% | 44.8% |
| Greenfield, MN | 3,013 | n/a |
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