| Index | Guilford | 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 | Guilford | Pennsylvania | National |
| Completed 8th grade | 93.3% | 86.9% | 84.3% |
| Completed high school | 93.3% | 85.6% | 83.0% |
| Completed some college | 67.8% | 53.6% | 59.4% |
| Completed associate degree | 57.2% | 37.4% | 38.5% |
| Completed bachelors | 47.0% | 29.3% | 30.3% |
| Completed masters | 22.6% | 11.5% | 11.5% |
| Completed professional degree | 6.5% | 3.3% | 3.3% |
| Completed doctorate | 2.3% | 1.4% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Guilford. Using the proficiency score averages, the average test scores for Guilford, PA schools is n/a. The average student to teacher ratio is n/a. In Guilford, PA, an average of 93.3% of students have completed 8th grade and an average of 93.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Greencastle, PA | 4,008 | 69% | 44.4% |
| Fayetteville, PA | 2,855 | 64% | 32.3% |
| Cashtown, PA | 244 | 63% | 31.3% |
| Shippensburg, PA | 5,621 | 62% | 29.9% |
| Waynesboro, PA | 10,898 | 61% | 27.8% |
| Guilford, PA | 3,571 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Abingdon, IL | 3,570 | 27% | 43.2% |
| Lockeford, CA | 3,572 | 40% | 16.7% |
| Dixmoor, IL | 3,570 | 8% | 83.3% |
| Unicoi, TN | 3,572 | 32% | 33.3% |
| Mount Angel, OR | 3,575 | 51% | 5.2% |
| Guilford, PA | 3,571 | n/a |
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