| Index | Grand Isle | Louisiana | National |
| Average Test Scores | 77% | 66% | 48% |
| Student/Teacher ratio | 8:1 | 14:1 | 16:1 |
| Total public schools | 1 | 1,334 | 79,221 |
| Total private schools | n/a | 395 | 24,874 |
| Total post-secondary schools | n/a | 175 | 7,963 |
| Index | Grand Isle | Louisiana | National |
| Completed 8th grade | 80.7% | 80.2% | 84.3% |
| Completed high school | 73.3% | 78.5% | 83.0% |
| Completed some college | 32.2% | 49.9% | 59.4% |
| Completed associate degree | 12.9% | 28.6% | 38.5% |
| Completed bachelors | 8.7% | 23.0% | 30.3% |
| Completed masters | 2.9% | 7.9% | 11.5% |
| Completed professional degree | 0.0% | 2.6% | 3.3% |
| Completed doctorate | 0.0% | 1.0% | 1.3% |
There are a total of 1 public schools, n/a private schools and n/a post-secondary schools in Grand Isle. Using the proficiency score averages, the average test scores for Grand Isle, LA schools is 77%. The average student to teacher ratio is 8:1. In Grand Isle, LA, an average of 80.7% of students have completed 8th grade and an average of 73.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Grand Isle, LA | 672 | 77% | 60.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Garibaldi, OR | 672 | 37% | 22.9% |
| Merrimac, WI | 672 | 45% | 6.3% |
| New Home, TX | 672 | 75% | 56.3% |
| Campbell, NY | 672 | 57% | 18.8% |
| Wyalusing, PA | 672 | 47% | 3.1% |
| Grand Isle, LA | 672 | 77% | 60.4% |
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