| Index | Castle Shannon | 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 | Castle Shannon | Pennsylvania | National |
| Completed 8th grade | 91.2% | 86.9% | 84.3% |
| Completed high school | 90.7% | 85.6% | 83.0% |
| Completed some college | 56.6% | 53.6% | 59.4% |
| Completed associate degree | 37.8% | 37.4% | 38.5% |
| Completed bachelors | 30.1% | 29.3% | 30.3% |
| Completed masters | 8.0% | 11.5% | 11.5% |
| Completed professional degree | 1.9% | 3.3% | 3.3% |
| Completed doctorate | 1.1% | 1.4% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Castle Shannon. Using the proficiency score averages, the average test scores for Castle Shannon, PA schools is n/a. The average student to teacher ratio is n/a. In Castle Shannon, PA, an average of 91.2% of students have completed 8th grade and an average of 90.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| McMurray, PA | 4,167 | 88% | 83.6% |
| McDonald, PA | 2,282 | 85% | 77.8% |
| Leetsdale, PA | 1,130 | 85% | 76.0% |
| Sewickley, PA | 3,800 | 81% | 67.7% |
| Allison Park, PA | 22,623 | 80% | 67.2% |
| Castle Shannon, PA | 8,249 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Cuero, TX | 8,246 | 42% | 12.5% |
| Oberlin, OH | 8,252 | 68% | 42.3% |
| Spotswood, NJ | 8,255 | 57% | 18.8% |
| Bryan, OH | 8,243 | 69% | 43.2% |
| Othello, WA | 8,241 | 33% | 32.3% |
| Castle Shannon, PA | 8,249 | n/a |
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