| Index | Marshallville | 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 | Marshallville | Ohio | National |
| Completed 8th grade | 78.5% | 86.9% | 84.3% |
| Completed high school | 77.4% | 85.6% | 83.0% |
| Completed some college | 31.2% | 55.7% | 59.4% |
| Completed associate degree | 20.7% | 35.1% | 38.5% |
| Completed bachelors | 8.0% | 26.7% | 30.3% |
| Completed masters | 1.3% | 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 Marshallville. Using the proficiency score averages, the average test scores for Marshallville, OH schools is n/a. The average student to teacher ratio is n/a. In Marshallville, OH, an average of 78.5% of students have completed 8th grade and an average of 77.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Wadsworth, OH | 23,789 | 84% | 74.3% |
| Green, OH | 25,737 | 83% | 71.9% |
| Canal Fulton, OH | 5,413 | 81% | 69.4% |
| Creston, OH | 2,020 | 80% | 67.4% |
| Dalton, OH | 1,681 | 80% | 66.3% |
| Marshallville, OH | 896 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| South Webster, OH | 896 | 77% | 59.4% |
| Cankton, LA | 896 | 72% | 50.0% |
| Export, PA | 896 | 72% | 50.0% |
| Chateaugay, NY | 896 | 51% | 5.7% |
| Clay City, IL | 896 | 26% | 45.1% |
| Marshallville, OH | 896 | n/a |
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