| 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 | 609 | 83% | 73.4% |
| Clifton Forge, VA | 3,667 | 77% | 60.4% |
| Covington, VA | 5,839 | 72% | 50.4% |
| Callaghan, VA | 252 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| McNeal, AZ | 252 | 40% | 16.7% |
| Moose Pass, AK | 252 | 50% | 4.2% |
| Prairie Home, MO | 252 | 40% | 16.7% |
| Hornbrook, CA | 252 | 30% | 37.5% |
| Talmo, GA | 252 | 47% | 2.1% |
| Callaghan, VA | 252 | n/a |