| Index | Decaturville | Tennessee | National |
| Average Test Scores | 46% | 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 | Decaturville | Tennessee | National |
| Completed 8th grade | 71.4% | 82.0% | 84.3% |
| Completed high school | 68.5% | 79.9% | 83.0% |
| Completed some college | 29.5% | 53.2% | 59.4% |
| Completed associate degree | 13.1% | 32.2% | 38.5% |
| Completed bachelors | 8.5% | 25.4% | 30.3% |
| Completed masters | 3.6% | 9.3% | 11.5% |
| Completed professional degree | 0.0% | 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 Decaturville. Using the proficiency score averages, the average test scores for Decaturville, TN schools is 46%. The average student to teacher ratio is n/a. In Decaturville, TN, an average of 71.4% of students have completed 8th grade and an average of 68.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Scotts Hill, TN | 1,320 | 51% | 5.2% |
| Parsons, TN | 2,585 | 41% | 14.6% |
| Clifton, TN | 2,660 | 25% | 49.0% |
| Decaturville, TN | 947 | 46% | 4.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Otisville, MI | 947 | 26% | 45.8% |
| Hays, MT | 947 | 31% | 35.8% |
| Waverly, MO | 947 | 40% | 17.7% |
| Newark Valley, NY | 947 | 47% | 3.1% |
| Hyndman, PA | 947 | 37% | 22.9% |
| Decaturville, TN | 947 | 46% | 4.7% |
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