| Index | Delta | Ohio | National |
| Average Test Scores | 76% | 61% | 48% |
| Student/Teacher ratio | 20:1 | 17:1 | 16:1 |
| Total public schools | 3 | 3,650 | 79,221 |
| Total private schools | n/a | 1,000 | 24,874 |
| Total post-secondary schools | n/a | 393 | 7,963 |
| Index | Delta | Ohio | National |
| Completed 8th grade | 91.6% | 86.9% | 84.3% |
| Completed high school | 90.4% | 85.6% | 83.0% |
| Completed some college | 52.2% | 55.7% | 59.4% |
| Completed associate degree | 28.4% | 35.1% | 38.5% |
| Completed bachelors | 18.2% | 26.7% | 30.3% |
| Completed masters | 6.8% | 10.0% | 11.5% |
| Completed professional degree | 1.2% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Delta. Using the proficiency score averages, the average test scores for Delta, OH schools is 76%. The average student to teacher ratio is 20:1. In Delta, OH, an average of 91.6% of students have completed 8th grade and an average of 90.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Waterville, OH | 5,519 | 91% | 89.6% |
| Whitehouse, OH | 4,624 | 86% | 78.9% |
| Pettisville, OH | 546 | 81% | 68.2% |
| Metamora, OH | 638 | 79% | 64.9% |
| Liberty Center, OH | 1,051 | 76% | 57.6% |
| Delta, OH | 2,838 | 76% | 57.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Weimar, TX | 2,838 | 53% | 9.4% |
| Kingston, WA | 2,836 | 56% | 16.7% |
| Rheems, PA | 2,836 | 67% | 39.6% |
| Arcola, IL | 2,840 | 26% | 46.4% |
| Woodbury, TN | 2,841 | 25% | 47.9% |
| Delta, OH | 2,838 | 76% | 57.6% |
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