| Index | Johnstown | Ohio | National |
| Average Test Scores | 69% | 61% | 48% |
| Student/Teacher ratio | 18:1 | 17:1 | 16:1 |
| Total public schools | 6 | 3,650 | 79,221 |
| Total private schools | n/a | 1,000 | 24,874 |
| Total post-secondary schools | n/a | 393 | 7,963 |
| Index | Johnstown | Ohio | National |
| Completed 8th grade | 89.1% | 86.9% | 84.3% |
| Completed high school | 88.5% | 85.6% | 83.0% |
| Completed some college | 49.4% | 55.7% | 59.4% |
| Completed associate degree | 29.7% | 35.1% | 38.5% |
| Completed bachelors | 21.5% | 26.7% | 30.3% |
| Completed masters | 7.7% | 10.0% | 11.5% |
| Completed professional degree | 2.3% | 2.7% | 3.3% |
| Completed doctorate | 1.6% | 1.1% | 1.3% |
There are a total of 6 public schools, n/a private schools and n/a post-secondary schools in Johnstown. Using the proficiency score averages, the average test scores for Johnstown, OH schools is 69%. The average student to teacher ratio is 18:1. In Johnstown, OH, an average of 89.1% of students have completed 8th grade and an average of 88.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Granville, OH | 5,829 | 90% | 87.5% |
| Galena, OH | 753 | 89% | 85.9% |
| New Albany, OH | 11,085 | 87% | 81.3% |
| Bexley, OH | 13,805 | 84% | 74.4% |
| Sunbury, OH | 5,934 | 79% | 65.3% |
| Johnstown, OH | 5,149 | 69% | 44.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Sterling, AK | 5,150 | 37% | 22.9% |
| Colchester, CT | 5,147 | 65% | 35.4% |
| Philomath, OR | 5,143 | 52% | 9.1% |
| Granite Shoals, TX | 5,142 | 30% | 37.5% |
| Birdsboro, PA | 5,141 | 73% | 51.0% |
| Johnstown, OH | 5,149 | 69% | 44.3% |
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