| Index | Cornwall | Pennsylvania | National |
| Average Test Scores | 69% | 55% | 48% |
| Student/Teacher ratio | 16:1 | 16:1 | 16:1 |
| Total public schools | 1 | 2,563 | 79,221 |
| Total private schools | n/a | 1,626 | 24,874 |
| Total post-secondary schools | n/a | 406 | 7,963 |
| Index | Cornwall | Pennsylvania | National |
| Completed 8th grade | 93.9% | 86.9% | 84.3% |
| Completed high school | 92.6% | 85.6% | 83.0% |
| Completed some college | 51.8% | 53.6% | 59.4% |
| Completed associate degree | 40.9% | 37.4% | 38.5% |
| Completed bachelors | 34.8% | 29.3% | 30.3% |
| Completed masters | 15.9% | 11.5% | 11.5% |
| Completed professional degree | 4.8% | 3.3% | 3.3% |
| Completed doctorate | 1.8% | 1.4% | 1.3% |
There are a total of 1 public schools, n/a private schools and n/a post-secondary schools in Cornwall. Using the proficiency score averages, the average test scores for Cornwall, PA schools is 69%. The average student to teacher ratio is 16:1. In Cornwall, PA, an average of 93.9% of students have completed 8th grade and an average of 92.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Bainbridge, PA | 1,399 | 84% | 75.0% |
| Hershey, PA | 14,941 | 76% | 57.7% |
| Palmyra, PA | 7,541 | 75% | 56.6% |
| Brownstown, PA | 3,160 | 70% | 44.8% |
| Landisville, PA | 2,338 | 68% | 41.9% |
| Cornwall, PA | 4,319 | 69% | 43.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Barrow, AK | 4,316 | 19% | 60.8% |
| Pixley, CA | 4,322 | 25% | 49.0% |
| Buena, NJ | 4,323 | 28% | 41.3% |
| Coleman, TX | 4,323 | 41% | 15.6% |
| Nikiski, AK | 4,324 | 32% | 33.3% |
| Cornwall, PA | 4,319 | 69% | 43.8% |
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