| Index | Grantley | 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 | Grantley | Pennsylvania | National |
| Completed 8th grade | 95.0% | 86.9% | 84.3% |
| Completed high school | 95.0% | 85.6% | 83.0% |
| Completed some college | 71.5% | 53.6% | 59.4% |
| Completed associate degree | 54.2% | 37.4% | 38.5% |
| Completed bachelors | 49.8% | 29.3% | 30.3% |
| Completed masters | 23.4% | 11.5% | 11.5% |
| Completed professional degree | 8.9% | 3.3% | 3.3% |
| Completed doctorate | 4.3% | 1.4% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Grantley. Using the proficiency score averages, the average test scores for Grantley, PA schools is n/a. The average student to teacher ratio is n/a. In Grantley, PA, an average of 95.0% of students have completed 8th grade and an average of 95.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Bainbridge, PA | 1,399 | 84% | 75.0% |
| York Haven, PA | 819 | 77% | 60.4% |
| Wrightsville, PA | 2,045 | 72% | 50.3% |
| Valley Green, PA | 3,504 | 72% | 50.0% |
| Manchester, PA | 2,680 | 72% | 49.2% |
| Grantley, PA | 4,320 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Cornwall, PA | 4,319 | 69% | 43.8% |
| 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% |
| Grantley, PA | 4,320 | n/a |
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