| Index | Dennison | Ohio | National |
| Average Test Scores | 76% | 61% | 48% |
| Student/Teacher ratio | 21:1 | 17:1 | 16:1 |
| Total public schools | 2 | 3,650 | 79,221 |
| Total private schools | 1 | 1,000 | 24,874 |
| Total post-secondary schools | n/a | 393 | 7,963 |
| Index | Dennison | Ohio | National |
| Completed 8th grade | 80.9% | 86.9% | 84.3% |
| Completed high school | 79.0% | 85.6% | 83.0% |
| Completed some college | 42.6% | 55.7% | 59.4% |
| Completed associate degree | 20.6% | 35.1% | 38.5% |
| Completed bachelors | 8.7% | 26.7% | 30.3% |
| Completed masters | 1.4% | 10.0% | 11.5% |
| Completed professional degree | 0.2% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of 2 public schools, 1 private schools and n/a post-secondary schools in Dennison. Using the proficiency score averages, the average test scores for Dennison, OH schools is 76%. The average student to teacher ratio is 21:1. In Dennison, OH, an average of 80.9% of students have completed 8th grade and an average of 79.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Port Washington, OH | 515 | 82% | 70.8% |
| Dundee, OH | 654 | 81% | 68.8% |
| Dover, OH | 12,754 | 73% | 51.0% |
| Tuscarawas, OH | 1,432 | 71% | 46.9% |
| Carrollton, OH | 3,310 | 69% | 44.0% |
| Dennison, OH | 2,521 | 76% | 57.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Osceola, WI | 2,521 | 53% | 9.7% |
| Stanfield, OR | 2,521 | 40% | 17.7% |
| Eastpoint, FL | 2,521 | 35% | 28.1% |
| New Lisbon, WI | 2,521 | 26% | 46.4% |
| Pawnee, IL | 2,522 | 33% | 30.7% |
| Dennison, OH | 2,521 | 76% | 57.3% |
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