| Index | Callaghan | Virginia | National |
| Average Test Scores | n/a | 79% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 1,596 | 79,221 |
| Total private schools | n/a | 553 | 24,874 |
| Total post-secondary schools | n/a | 199 | 7,963 |
| Index | Callaghan | Virginia | National |
| Completed 8th grade | 79.8% | 85.9% | 84.3% |
| Completed high school | 72.3% | 84.7% | 83.0% |
| Completed some college | 41.5% | 64.1% | 59.4% |
| Completed associate degree | 17.6% | 44.2% | 38.5% |
| Completed bachelors | 11.2% | 36.9% | 30.3% |
| Completed masters | 1.1% | 15.7% | 11.5% |
| Completed professional degree | 1.1% | 4.2% | 3.3% |
| Completed doctorate | 1.1% | 1.7% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Callaghan. Using the proficiency score averages, the average test scores for Callaghan, VA schools is n/a. The average student to teacher ratio is n/a. In Callaghan, VA, an average of 79.8% of students have completed 8th grade and an average of 72.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Hot Springs, VA | 586 | 83% | 73.4% |
| Clifton Forge, VA | 3,534 | 77% | 60.4% |
| Covington, VA | 5,653 | 72% | 50.4% |
| Callaghan, VA | 247 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Easton, KS | 247 | 42% | 12.5% |
| Powellsville, NC | 247 | 10% | 79.2% |
| Bennington, OK | 247 | 30% | 38.0% |
| Manitou, OK | 247 | 50% | 4.2% |
| Reed Point, MT | 247 | 53% | 11.1% |
| Callaghan, VA | 247 | n/a |
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