| Index | De Graff | Ohio | National |
| Average Test Scores | 66% | 61% | 48% |
| Student/Teacher ratio | 16:1 | 17:1 | 16:1 |
| Total public schools | 2 | 3,650 | 79,221 |
| Total private schools | n/a | 1,000 | 24,874 |
| Total post-secondary schools | n/a | 393 | 7,963 |
| Index | De Graff | Ohio | National |
| Completed 8th grade | 84.9% | 86.9% | 84.3% |
| Completed high school | 81.8% | 85.6% | 83.0% |
| Completed some college | 43.8% | 55.7% | 59.4% |
| Completed associate degree | 20.3% | 35.1% | 38.5% |
| Completed bachelors | 12.4% | 26.7% | 30.3% |
| Completed masters | 4.8% | 10.0% | 11.5% |
| Completed professional degree | 0.4% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in De Graff. Using the proficiency score averages, the average test scores for De Graff, OH schools is 66%. The average student to teacher ratio is 16:1. In De Graff, OH, an average of 84.9% of students have completed 8th grade and an average of 81.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Botkins, OH | 1,151 | 84% | 75.5% |
| Anna, OH | 1,608 | 83% | 72.6% |
| West Liberty, OH | 1,600 | 79% | 64.1% |
| Jackson Center, OH | 1,575 | 77% | 60.4% |
| Lewistown, OH | 265 | 70% | 45.8% |
| De Graff, OH | 1,397 | 66% | 37.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Standish, MI | 1,397 | 49% | 2.1% |
| Machias, ME | 1,396 | 42% | 12.0% |
| Princeton, NC | 1,396 | 39% | 19.3% |
| Payson, IL | 1,398 | 25% | 49.0% |
| Okarche, OK | 1,398 | 42% | 11.8% |
| De Graff, OH | 1,397 | 66% | 37.0% |
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