| Index | Charleston | Tennessee | National |
| Average Test Scores | 37% | 35% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | n/a | 1,390 | 79,221 |
| Total private schools | n/a | 430 | 24,874 |
| Total post-secondary schools | n/a | 189 | 7,963 |
| Index | Charleston | Tennessee | National |
| Completed 8th grade | 74.8% | 82.0% | 84.3% |
| Completed high school | 74.5% | 79.9% | 83.0% |
| Completed some college | 41.2% | 53.2% | 59.4% |
| Completed associate degree | 16.0% | 32.2% | 38.5% |
| Completed bachelors | 8.8% | 25.4% | 30.3% |
| Completed masters | 3.1% | 9.3% | 11.5% |
| Completed professional degree | 0.4% | 2.8% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Charleston. Using the proficiency score averages, the average test scores for Charleston, TN schools is 37%. The average student to teacher ratio is n/a. In Charleston, TN, an average of 74.8% of students have completed 8th grade and an average of 74.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Calhoun, TN | 674 | 46% | 5.2% |
| Dayton, TN | 7,357 | 43% | 9.6% |
| Riceville, TN | 771 | 41% | 14.6% |
| Cleveland, TN | 45,115 | 38% | 21.4% |
| Athens, TN | 13,931 | 38% | 21.5% |
| Charleston, TN | 668 | 37% | 22.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Argyle, MN | 668 | 67% | 39.6% |
| Howard, KS | 668 | 42% | 12.5% |
| Waynesfield, OH | 668 | 73% | 52.6% |
| Hickory Flat, MS | 668 | 48% | 1.0% |
| Pleasant Hope, MO | 668 | 37% | 22.9% |
| Charleston, TN | 668 | 37% | 22.9% |
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