| Index | Gargatha | 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 | Gargatha | Virginia | National |
| Completed 8th grade | 85.6% | 85.9% | 84.3% |
| Completed high school | 74.6% | 84.7% | 83.0% |
| Completed some college | 24.4% | 64.1% | 59.4% |
| Completed associate degree | 8.2% | 44.2% | 38.5% |
| Completed bachelors | 4.1% | 36.9% | 30.3% |
| Completed masters | 4.1% | 15.7% | 11.5% |
| Completed professional degree | 0.0% | 4.2% | 3.3% |
| Completed doctorate | 0.0% | 1.7% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Gargatha. Using the proficiency score averages, the average test scores for Gargatha, VA schools is n/a. The average student to teacher ratio is n/a. In Gargatha, VA, an average of 85.6% of students have completed 8th grade and an average of 74.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Chincoteague, VA | 2,943 | 87% | 81.3% |
| Onley, VA | 765 | 81% | 68.2% |
| Oak Hall, VA | 72 | 78% | 62.0% |
| Melfa, VA | 453 | 75% | 55.2% |
| Accomac, VA | 874 | 72% | 49.0% |
| Gargatha, VA | 420 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Loomis, NE | 420 | 61% | 27.1% |
| Kila, MT | 420 | 55% | 14.1% |
| Sheldon, MO | 420 | 43% | 11.5% |
| Shidler, OK | 420 | 35% | 27.1% |
| Skellytown, TX | 420 | 55% | 14.6% |
| Gargatha, VA | 420 | n/a |