| Index | Marion | Texas | National |
| Average Test Scores | 55% | 47% | 48% |
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 |
| Total public schools | 5 | 7,418 | 79,221 |
| Total private schools | n/a | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Marion | Texas | National |
| Completed 8th grade | 73.0% | 79.3% | 84.3% |
| Completed high school | 71.0% | 77.8% | 83.0% |
| Completed some college | 40.9% | 57.3% | 59.4% |
| Completed associate degree | 18.8% | 34.9% | 38.5% |
| Completed bachelors | 12.4% | 28.1% | 30.3% |
| Completed masters | 2.5% | 9.6% | 11.5% |
| Completed professional degree | 0.6% | 2.6% | 3.3% |
| Completed doctorate | 0.6% | 1.1% | 1.3% |
There are a total of 5 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, TX schools is 55%. The average student to teacher ratio is 15:1. In Marion, TX, an average of 73.0% of students have completed 8th grade and an average of 71.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Live Oak, TX | 16,118 | 83% | 72.4% |
| Randolph AFB, TX | 1,188 | 66% | 36.8% |
| Garden Ridge, TX | 4,054 | 66% | 36.5% |
| Cibolo, TX | 30,333 | 57% | 18.5% |
| New Braunfels, TX | 84,622 | 56% | 16.1% |
| Marion, TX | 886 | 55% | 13.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Quinter, KS | 886 | 43% | 9.9% |
| Rockford, AL | 886 | 31% | 34.9% |
| Pisgah, AL | 886 | 51% | 5.7% |
| Browning, MT | 886 | 9% | 81.5% |
| Braceville, IL | 886 | 30% | 37.5% |
| Marion, TX | 886 | 55% | 13.5% |
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