| Index | Cottage Grove | Tennessee | National |
| Average Test Scores | n/a | 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 |
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| Index | Cottage Grove | Tennessee | National |
| Completed 8th grade | 87.1% | 82.0% | 84.3% |
| Completed high school | 87.1% | 79.9% | 83.0% |
| Completed some college | 48.6% | 53.2% | 59.4% |
| Completed associate degree | 21.4% | 32.2% | 38.5% |
| Completed bachelors | 2.9% | 25.4% | 30.3% |
| Completed masters | 0.0% | 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 Cottage Grove. Using the proficiency score averages, the average test scores for Cottage Grove, TN schools is n/a. The average student to teacher ratio is n/a. In Cottage Grove, TN, an average of 87.1% of students have completed 8th grade and an average of 87.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Paris, TN | 10,260 | 45% | 7.3% |
| Puryear, TN | 712 | 37% | 22.9% |
| Dresden, TN | 3,012 | 37% | 23.6% |
| Gleason, TN | 1,581 | 36% | 26.0% |
| Henry, TN | 520 | 27% | 43.8% |
| Cottage Grove, TN | 62 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Igiugig, AK | 62 | 50% | 4.2% |
| Crookston, NE | 62 | 30% | 37.5% |
| Sasakwa, OK | 62 | 13% | 72.4% |
| Yucca, AZ | 62 | 50% | 4.2% |
| Zalma, MO | 62 | 45% | 5.7% |
| Cottage Grove, TN | 62 | n/a |
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