| Index | Sumner | Mississippi | National |
| Average Test Scores | 22% | 40% | 48% |
| Student/Teacher ratio | n/a | 16:1 | 16:1 |
| Total public schools | n/a | 893 | 79,221 |
| Total private schools | n/a | 206 | 24,874 |
| Total post-secondary schools | n/a | 68 | 7,963 |
| Index | Sumner | Mississippi | National |
| Completed 8th grade | 77.3% | 78.6% | 84.3% |
| Completed high school | 76.9% | 76.7% | 83.0% |
| Completed some college | 67.1% | 52.5% | 59.4% |
| Completed associate degree | 42.7% | 29.8% | 38.5% |
| Completed bachelors | 35.1% | 21.0% | 30.3% |
| Completed masters | 10.7% | 7.9% | 11.5% |
| Completed professional degree | 1.3% | 2.2% | 3.3% |
| Completed doctorate | 0.4% | 0.9% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Sumner. Using the proficiency score averages, the average test scores for Sumner, MS schools is 22%. The average student to teacher ratio is n/a. In Sumner, MS, an average of 77.3% of students have completed 8th grade and an average of 76.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Drew, MS | 2,343 | 32% | 33.3% |
| Webb, MS | 446 | 27% | 43.8% |
| Sumner, MS | 249 | 22% | 55.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Straughn, IN | 249 | 42% | 13.5% |
| Leland, MI | 249 | 49% | 1.0% |
| Churchville, VA | 249 | 79% | 63.5% |
| Chataignier, LA | 249 | 67% | 38.5% |
| Nett Lake, MN | 249 | 50% | 4.2% |
| Sumner, MS | 249 | 22% | 55.2% |
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