| Index | St. Clairsville | Pennsylvania | National |
| Average Test Scores | n/a | 55% | 48% |
| Student/Teacher ratio | n/a | 16:1 | 16:1 |
| Total public schools | n/a | 2,563 | 79,221 |
| Total private schools | n/a | 1,626 | 24,874 |
| Total post-secondary schools | n/a | 406 | 7,963 |

| Index | St. Clairsville | Pennsylvania | National |
| Completed 8th grade | 90.0% | 86.9% | 84.3% |
| Completed high school | 90.0% | 85.6% | 83.0% |
| Completed some college | 25.0% | 53.6% | 59.4% |
| Completed associate degree | 25.0% | 37.4% | 38.5% |
| Completed bachelors | 21.7% | 29.3% | 30.3% |
| Completed masters | 13.3% | 11.5% | 11.5% |
| Completed professional degree | 1.7% | 3.3% | 3.3% |
| Completed doctorate | 1.7% | 1.4% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in St. Clairsville. Using the proficiency score averages, the average test scores for St. Clairsville, PA schools is n/a. The average student to teacher ratio is n/a. In St. Clairsville, PA, an average of 90.0% of students have completed 8th grade and an average of 90.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| New Paris, PA | 202 | 68% | 40.6% |
| Martinsburg, PA | 1,874 | 63% | 30.2% |
| Sidman, PA | 226 | 57% | 19.3% |
| Bedford, PA | 2,799 | 56% | 15.6% |
| Everett, PA | 2,167 | 53% | 10.8% |
| St. Clairsville, PA | 68 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Dutch John, UT | 68 | 50% | 4.2% |
| Burna, KY | 68 | 53% | 9.9% |
| Swink, OK | 68 | 22% | 54.2% |
| Graysville, OH | 69 | 67% | 39.6% |
| Fancy Gap, VA | 67 | 91% | 89.6% |
| St. Clairsville, PA | 68 | n/a |