| Index | Hadley | 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 | Hadley | Minnesota | National |
| Completed 8th grade | 100.0% | 90.5% | 84.3% |
| Completed high school | 97.0% | 89.5% | 83.0% |
| Completed some college | 51.5% | 66.9% | 59.4% |
| Completed associate degree | 30.3% | 45.2% | 38.5% |
| Completed bachelors | 15.2% | 34.2% | 30.3% |
| Completed masters | 0.0% | 11.5% | 11.5% |
| Completed professional degree | 0.0% | 3.5% | 3.3% |
| Completed doctorate | 0.0% | 1.4% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Hadley. Using the proficiency score averages, the average test scores for Hadley, MN schools is n/a. The average student to teacher ratio is n/a. In Hadley, MN, an average of 100.0% of students have completed 8th grade and an average of 97.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Slayton, MN | 1,953 | 62% | 28.1% |
| Ruthton, MN | 236 | 60% | 24.0% |
| Fulda, MN | 1,314 | 56% | 16.1% |
| Edgerton, MN | 1,257 | 51% | 5.7% |
| Hadley, MN | 56 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Utica, SD | 56 | 50% | 4.2% |
| Leggett, CA | 56 | 25% | 47.9% |
| Hughes, AK | 56 | 50% | 4.2% |
| Shageluk, AK | 56 | 50% | 4.2% |
| Put-in-Bay, OH | 56 | 65% | 35.4% |
| Hadley, MN | 56 | n/a |
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