| Index | Castalian Springs | 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 |

| Index | Castalian Springs | Tennessee | National |
| Completed 8th grade | 64.0% | 82.0% | 84.3% |
| Completed high school | 64.0% | 79.9% | 83.0% |
| Completed some college | 17.8% | 53.2% | 59.4% |
| Completed associate degree | 5.4% | 32.2% | 38.5% |
| Completed bachelors | 3.4% | 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 Castalian Springs. Using the proficiency score averages, the average test scores for Castalian Springs, TN schools is n/a. The average student to teacher ratio is n/a. In Castalian Springs, TN, an average of 64.0% of students have completed 8th grade and an average of 64.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Cottontown, TN | 366 | 62% | 29.2% |
| Mount Juliet, TN | 36,915 | 56% | 16.8% |
| Hartsville (Trousdale County) , TN | 8,201 | 47% | 1.7% |
| Westmoreland, TN | 2,679 | 45% | 5.7% |
| Gallatin, TN | 41,372 | 43% | 11.1% |
| Castalian Springs, TN | 405 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Grimesland, NC | 405 | 42% | 13.5% |
| Sunburst, MT | 405 | 52% | 8.3% |
| Pomfret, MD | 405 | 51% | 6.9% |
| Clifton, KS | 405 | 35% | 27.6% |
| Enola, AR | 404 | 52% | 8.3% |
| Castalian Springs, TN | 405 | n/a |