| Index | Dellroy | Ohio | National |
| Average Test Scores | n/a | 61% | 48% |
| Student/Teacher ratio | n/a | 17:1 | 16:1 |
| Total public schools | n/a | 3,650 | 79,221 |
| Total private schools | n/a | 1,000 | 24,874 |
| Total post-secondary schools | n/a | 393 | 7,963 |
| Index | Dellroy | Ohio | National |
| Completed 8th grade | 90.1% | 86.9% | 84.3% |
| Completed high school | 90.1% | 85.6% | 83.0% |
| Completed some college | 43.7% | 55.7% | 59.4% |
| Completed associate degree | 18.0% | 35.1% | 38.5% |
| Completed bachelors | 8.6% | 26.7% | 30.3% |
| Completed masters | 3.6% | 10.0% | 11.5% |
| Completed professional degree | 1.8% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Dellroy. Using the proficiency score averages, the average test scores for Dellroy, OH schools is n/a. The average student to teacher ratio is n/a. In Dellroy, OH, an average of 90.1% of students have completed 8th grade and an average of 90.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Bolivar, OH | 1,081 | 86% | 78.1% |
| Dennison, OH | 2,521 | 76% | 57.3% |
| Dover, OH | 12,754 | 73% | 51.0% |
| Hanoverton, OH | 310 | 71% | 47.9% |
| Tuscarawas, OH | 1,432 | 71% | 46.9% |
| Dellroy, OH | 256 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Hickory, KY | 256 | 60% | 24.0% |
| Hunter, ND | 256 | 43% | 10.4% |
| Metaline Falls, WA | 256 | 67% | 39.6% |
| Centerview, MO | 256 | 41% | 15.1% |
| Petersham, MA | 256 | 50% | 3.1% |
| Dellroy, OH | 256 | n/a |
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