| Index | Marion | Kansas | National |
| Average Test Scores | 39% | 35% | 48% |
| Student/Teacher ratio | 12:1 | 14:1 | 16:1 |
| Total public schools | 3 | 970 | 79,221 |
| Total private schools | n/a | 190 | 24,874 |
| Total post-secondary schools | n/a | 86 | 7,963 |
| Index | Marion | Kansas | National |
| Completed 8th grade | 81.4% | 87.4% | 84.3% |
| Completed high school | 79.8% | 86.1% | 83.0% |
| Completed some college | 50.7% | 63.7% | 59.4% |
| Completed associate degree | 26.8% | 39.8% | 38.5% |
| Completed bachelors | 21.3% | 31.6% | 30.3% |
| Completed masters | 6.5% | 11.4% | 11.5% |
| Completed professional degree | 2.9% | 3.0% | 3.3% |
| Completed doctorate | 0.3% | 1.2% | 1.3% |
There are a total of 3 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, KS schools is 39%. The average student to teacher ratio is 12:1. In Marion, KS, an average of 81.4% of students have completed 8th grade and an average of 79.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Hillsboro, KS | 2,808 | 48% | 0.5% |
| Lost Springs, KS | 80 | 37% | 22.9% |
| Peabody, KS | 1,180 | 20% | 58.9% |
| Marion, KS | 1,829 | 39% | 19.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Horton, KS | 1,829 | 25% | 48.4% |
| Baird, TX | 1,828 | 43% | 11.5% |
| Devon, PA | 1,830 | 84% | 75.5% |
| Campbellsport, WI | 1,830 | 47% | 1.3% |
| Troy, TN | 1,828 | 37% | 22.9% |
| Marion, KS | 1,829 | 39% | 19.1% |
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