| Index | Marlin | 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 |


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| Index | Marlin | Pennsylvania | National |
| Completed 8th grade | 85.0% | 86.9% | 84.3% |
| Completed high school | 85.0% | 85.6% | 83.0% |
| Completed some college | 35.7% | 53.6% | 59.4% |
| Completed associate degree | 22.2% | 37.4% | 38.5% |
| Completed bachelors | 16.4% | 29.3% | 30.3% |
| Completed masters | 5.5% | 11.5% | 11.5% |
| Completed professional degree | 2.9% | 3.3% | 3.3% |
| Completed doctorate | 2.9% | 1.4% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Marlin. Using the proficiency score averages, the average test scores for Marlin, PA schools is n/a. The average student to teacher ratio is n/a. In Marlin, PA, an average of 85.0% of students have completed 8th grade and an average of 85.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Friedensburg, PA | 889 | 82% | 70.8% |
| Cressona, PA | 1,350 | 67% | 39.6% |
| Shoemakersville, PA | 1,349 | 65% | 34.4% |
| Pine Grove, PA | 2,088 | 61% | 26.4% |
| Schuylkill Haven, PA | 5,137 | 59% | 22.1% |
| Marlin, PA | 389 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Underwood, MN | 389 | 57% | 18.8% |
| Alexandria, PA | 389 | 48% | 0.5% |
| Branch, AR | 389 | 61% | 26.6% |
| Enola, AR | 389 | 52% | 8.3% |
| East Duke, OK | 389 | 33% | 32.3% |
| Marlin, PA | 389 | n/a |