| Index | New Marshfield | 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 | New Marshfield | Ohio | National |
| Completed 8th grade | 79.4% | 86.9% | 84.3% |
| Completed high school | 79.4% | 85.6% | 83.0% |
| Completed some college | 28.2% | 55.7% | 59.4% |
| Completed associate degree | 22.0% | 35.1% | 38.5% |
| Completed bachelors | 16.2% | 26.7% | 30.3% |
| Completed masters | 10.7% | 10.0% | 11.5% |
| Completed professional degree | 5.2% | 2.7% | 3.3% |
| Completed doctorate | 5.2% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in New Marshfield. Using the proficiency score averages, the average test scores for New Marshfield, OH schools is n/a. The average student to teacher ratio is n/a. In New Marshfield, OH, an average of 79.4% of students have completed 8th grade and an average of 79.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Logan, OH | 6,677 | 76% | 57.3% |
| Albany, OH | 955 | 70% | 45.8% |
| McArthur, OH | 1,501 | 70% | 44.8% |
| Athens, OH | 24,978 | 69% | 42.7% |
| The Plains, OH | 2,813 | 54% | 13.0% |
| New Marshfield, OH | 236 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Koliganek, AK | 236 | 13% | 74.0% |
| Thedford, NE | 236 | 40% | 16.7% |
| Ruthton, MN | 236 | 60% | 24.0% |
| Grenora, ND | 236 | 49% | 1.0% |
| Anderson, TX | 235 | 59% | 23.4% |
| New Marshfield, OH | 236 | n/a |
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