| Index | Clarksville | 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 | Clarksville | Pennsylvania | National |
| Completed 8th grade | 80.8% | 86.9% | 84.3% |
| Completed high school | 76.8% | 85.6% | 83.0% |
| Completed some college | 32.2% | 53.6% | 59.4% |
| Completed associate degree | 19.8% | 37.4% | 38.5% |
| Completed bachelors | 13.6% | 29.3% | 30.3% |
| Completed masters | 2.3% | 11.5% | 11.5% |
| Completed professional degree | 2.3% | 3.3% | 3.3% |
| Completed doctorate | 0.0% | 1.4% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Clarksville. Using the proficiency score averages, the average test scores for Clarksville, PA schools is n/a. The average student to teacher ratio is n/a. In Clarksville, PA, an average of 80.8% of students have completed 8th grade and an average of 76.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Eighty Four, PA | 345 | 80% | 65.6% |
| Bobtown, PA | 618 | 70% | 44.8% |
| Monongahela, PA | 4,142 | 65% | 35.1% |
| Bentleyville, PA | 2,466 | 61% | 27.8% |
| Belle Vernon, PA | 952 | 61% | 26.3% |
| Clarksville, PA | 199 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Pleasant Plains, AR | 199 | 20% | 59.4% |
| Andes, NY | 199 | 35% | 27.1% |
| Wyola, MT | 199 | 20% | 58.3% |
| Delmont, SD | 198 | 50% | 4.2% |
| Old Mill Creek, IL | 200 | 55% | 14.6% |
| Clarksville, PA | 199 | n/a |
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