| Index | Wren | 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 | Wren | Ohio | National |
| Completed 8th grade | 87.7% | 86.9% | 84.3% |
| Completed high school | 87.7% | 85.6% | 83.0% |
| Completed some college | 55.6% | 55.7% | 59.4% |
| Completed associate degree | 24.7% | 35.1% | 38.5% |
| Completed bachelors | 4.9% | 26.7% | 30.3% |
| Completed masters | 3.1% | 10.0% | 11.5% |
| Completed professional degree | 0.0% | 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 Wren. Using the proficiency score averages, the average test scores for Wren, OH schools is n/a. The average student to teacher ratio is n/a. In Wren, OH, an average of 87.7% of students have completed 8th grade and an average of 87.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Rockford, OH | 883 | 83% | 72.6% |
| Convoy, OH | 1,096 | 83% | 72.6% |
| Haviland, OH | 258 | 72% | 50.0% |
| Van Wert, OH | 10,531 | 69% | 42.9% |
| Monroe, IN | 864 | 53% | 10.8% |
| Wren, OH | 184 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| East Lynne, MO | 184 | 57% | 18.8% |
| Spokane, MO | 184 | 55% | 14.1% |
| Warba, MN | 184 | 50% | 4.2% |
| Bartlett, NH | 184 | 65% | 34.4% |
| Litchfield, CA | 183 | 35% | 28.1% |
| Wren, OH | 184 | n/a |
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