| Index | Marks | Mississippi | National |
| Average Test Scores | 21% | 40% | 48% |
| Student/Teacher ratio | 14:1 | 16:1 | 16:1 |
| Total public schools | 3 | 893 | 79,221 |
| Total private schools | 1 | 206 | 24,874 |
| Total post-secondary schools | n/a | 68 | 7,963 |
| Index | Marks | Mississippi | National |
| Completed 8th grade | 70.2% | 78.6% | 84.3% |
| Completed high school | 69.0% | 76.7% | 83.0% |
| Completed some college | 47.9% | 52.5% | 59.4% |
| Completed associate degree | 29.0% | 29.8% | 38.5% |
| Completed bachelors | 21.3% | 21.0% | 30.3% |
| Completed masters | 6.6% | 7.9% | 11.5% |
| Completed professional degree | 3.0% | 2.2% | 3.3% |
| Completed doctorate | 0.0% | 0.9% | 1.3% |
There are a total of 3 public schools, 1 private schools and n/a post-secondary schools in Marks. Using the proficiency score averages, the average test scores for Marks, MS schools is 21%. The average student to teacher ratio is 14:1. In Marks, MS, an average of 70.2% of students have completed 8th grade and an average of 69.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Lambert, MS | 1,159 | 52% | 8.3% |
| Jonestown, MS | 968 | 22% | 54.2% |
| Marks, MS | 1,802 | 21% | 56.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Walcott, IA | 1,802 | 66% | 38.0% |
| McEwen, TN | 1,802 | 32% | 34.0% |
| Moodus, CT | 1,802 | 63% | 31.6% |
| Syracuse, KS | 1,802 | 22% | 54.2% |
| Remsen, IA | 1,802 | 71% | 47.9% |
| Marks, MS | 1,802 | 21% | 56.8% |
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