| Index | Defiance | 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 | Defiance | Pennsylvania | National |
| Completed 8th grade | 90.1% | 86.9% | 84.3% |
| Completed high school | 90.1% | 85.6% | 83.0% |
| Completed some college | 26.2% | 53.6% | 59.4% |
| Completed associate degree | 14.5% | 37.4% | 38.5% |
| Completed bachelors | 14.5% | 29.3% | 30.3% |
| Completed masters | 14.5% | 11.5% | 11.5% |
| Completed professional degree | 0.0% | 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 Defiance. Using the proficiency score averages, the average test scores for Defiance, PA schools is n/a. The average student to teacher ratio is n/a. In Defiance, PA, an average of 90.1% of students have completed 8th grade and an average of 90.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Martinsburg, PA | 1,834 | 63% | 30.2% |
| Bedford, PA | 2,703 | 56% | 15.6% |
| Everett, PA | 2,111 | 53% | 10.8% |
| Claysburg, PA | 1,196 | 48% | 1.0% |
| Saxton, PA | 644 | 47% | 1.7% |
| Defiance, PA | 481 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Loganton, PA | 481 | 35% | 27.1% |
| Brunson, SC | 481 | 50% | 3.1% |
| Bethpage, TN | 481 | 38% | 20.3% |
| Carmichaels, PA | 481 | 50% | 3.5% |
| Randolph, MN | 481 | 49% | 1.0% |
| Defiance, PA | 481 | n/a |
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