| Index | Marion | New York | National |
| Average Test Scores | 57% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | n/a | 4,060 | 79,221 |
| Total private schools | n/a | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Marion | New York | National |
| Completed 8th grade | 86.5% | 83.5% | 84.3% |
| Completed high school | 85.7% | 82.1% | 83.0% |
| Completed some college | 55.7% | 59.5% | 59.4% |
| Completed associate degree | 41.5% | 43.4% | 38.5% |
| Completed bachelors | 28.1% | 34.7% | 30.3% |
| Completed masters | 12.3% | 15.1% | 11.5% |
| Completed professional degree | 0.0% | 4.2% | 3.3% |
| Completed doctorate | 0.0% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Marion. Using the proficiency score averages, the average test scores for Marion, NY schools is 57%. The average student to teacher ratio is n/a. In Marion, NY, an average of 86.5% of students have completed 8th grade and an average of 85.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Victor, NY | 2,709 | 70% | 46.6% |
| Fairport, NY | 5,336 | 65% | 35.8% |
| Palmyra, NY | 3,361 | 64% | 33.3% |
| Webster, NY | 5,666 | 62% | 28.5% |
| Williamson, NY | 2,642 | 62% | 28.5% |
| Marion, NY | 1,251 | 57% | 18.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Curtice, OH | 1,251 | 77% | 60.4% |
| Meadow View, VA | 1,251 | 86% | 78.1% |
| Sunman, IN | 1,251 | 52% | 8.3% |
| Altoona, AL | 1,250 | 44% | 8.3% |
| Upper Lake, CA | 1,250 | 26% | 46.2% |
| Marion, NY | 1,251 | 57% | 18.8% |
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