| 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 | 2,885 | 87% | 81.3% |
| Onley, VA | 735 | 81% | 68.2% |
| Oak Hall, VA | 70 | 78% | 62.0% |
| Melfa, VA | 444 | 75% | 55.2% |
| Accomac, VA | 855 | 72% | 49.0% |
| Gargatha, VA | 410 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Caroga Lake, NY | 410 | 37% | 22.9% |
| Homer, NE | 410 | 51% | 5.7% |
| Ione, OR | 410 | 42% | 12.5% |
| Finley, ND | 410 | 65% | 35.4% |
| Carlos, MN | 410 | 62% | 29.2% |
| Gargatha, VA | 410 | n/a |
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