| Index | Kosciusko | Mississippi | National |
| Average Test Scores | 45% | 40% | 48% |
| Student/Teacher ratio | 16:1 | 16:1 | 16:1 |
| Total public schools | 7 | 893 | 79,221 |
| Total private schools | 1 | 206 | 24,874 |
| Total post-secondary schools | 1 | 68 | 7,963 |
| Index | Kosciusko | Mississippi | National |
| Completed 8th grade | 75.2% | 78.6% | 84.3% |
| Completed high school | 72.2% | 76.7% | 83.0% |
| Completed some college | 49.8% | 52.5% | 59.4% |
| Completed associate degree | 26.6% | 29.8% | 38.5% |
| Completed bachelors | 17.5% | 21.0% | 30.3% |
| Completed masters | 7.1% | 7.9% | 11.5% |
| Completed professional degree | 1.5% | 2.2% | 3.3% |
| Completed doctorate | 0.5% | 0.9% | 1.3% |
There are a total of 7 public schools, 1 private schools and 1 post-secondary schools in Kosciusko. Using the proficiency score averages, the average test scores for Kosciusko, MS schools is 45%. The average student to teacher ratio is 16:1. In Kosciusko, MS, an average of 75.2% of students have completed 8th grade and an average of 72.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| McCool, MS | 115 | 44% | 9.4% |
| Ethel, MS | 542 | 37% | 22.9% |
| Sallis, MS | 238 | 35% | 28.1% |
| Kosciusko, MS | 6,778 | 45% | 6.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Union, OH | 6,777 | 69% | 42.7% |
| Pacific, MO | 6,780 | 45% | 6.0% |
| Robertsdale, AL | 6,776 | 51% | 6.3% |
| Thurmont, MD | 6,783 | 46% | 3.9% |
| Osceola, AR | 6,786 | 22% | 54.2% |
| Kosciusko, MS | 6,778 | 45% | 6.5% |
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