| Index | Marianna | Arkansas | National |
| Average Test Scores | 15% | 45% | 48% |
| Student/Teacher ratio | 16:1 | 14:1 | 16:1 |
| Total public schools | 4 | 860 | 79,221 |
| Total private schools | 2 | 165 | 24,874 |
| Total post-secondary schools | n/a | 98 | 7,963 |
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| Index | Marianna | Arkansas | National |
| Completed 8th grade | 66.4% | 80.7% | 84.3% |
| Completed high school | 62.4% | 79.0% | 83.0% |
| Completed some college | 32.6% | 50.5% | 59.4% |
| Completed associate degree | 12.8% | 27.9% | 38.5% |
| Completed bachelors | 9.1% | 21.5% | 30.3% |
| Completed masters | 3.1% | 7.6% | 11.5% |
| Completed professional degree | 0.2% | 2.2% | 3.3% |
| Completed doctorate | 0.2% | 0.9% | 1.3% |
There are a total of 4 public schools, 2 private schools and n/a post-secondary schools in Marianna. Using the proficiency score averages, the average test scores for Marianna, AR schools is 15%. The average student to teacher ratio is 16:1. In Marianna, AR, an average of 66.4% of students have completed 8th grade and an average of 62.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Palestine, AR | 866 | 46% | 5.2% |
| Marvell, AR | 1,682 | 14% | 71.9% |
| Marianna, AR | 3,599 | 15% | 69.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Red Bud, IL | 3,599 | 33% | 31.3% |
| Etowah, TN | 3,600 | 36% | 26.0% |
| Locust Valley, NY | 3,597 | 84% | 75.3% |
| Gunnison, UT | 3,602 | 39% | 18.8% |
| Hubbard, OR | 3,603 | 59% | 21.9% |
| Marianna, AR | 3,599 | 15% | 69.3% |
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