| Index | Key Largo | Florida | National |
| Average Test Scores | 61% | 55% | 48% |
| Student/Teacher ratio | 14:1 | 17:1 | 16:1 |
| Total public schools | 2 | 3,388 | 79,221 |
| Total private schools | 4 | 1,640 | 24,874 |
| Total post-secondary schools | n/a | 466 | 7,963 |
| Index | Key Largo | Florida | National |
| Completed 8th grade | 86.7% | 84.0% | 84.3% |
| Completed high school | 86.0% | 83.0% | 83.0% |
| Completed some college | 63.3% | 58.0% | 59.4% |
| Completed associate degree | 39.7% | 37.4% | 38.5% |
| Completed bachelors | 31.6% | 27.9% | 30.3% |
| Completed masters | 14.5% | 10.0% | 11.5% |
| Completed professional degree | 6.8% | 3.1% | 3.3% |
| Completed doctorate | 3.9% | 1.1% | 1.3% |
There are a total of 2 public schools, 4 private schools and n/a post-secondary schools in Key Largo. Using the proficiency score averages, the average test scores for Key Largo, FL schools is 61%. The average student to teacher ratio is 14:1. In Key Largo, FL, an average of 86.7% of students have completed 8th grade and an average of 86.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Islamorada, Village of Islands, FL | 6,384 | 75% | 55.2% |
| Tavernier, FL | 1,980 | 71% | 47.9% |
| Key Largo, FL | 9,670 | 61% | 26.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Hope, AR | 9,668 | 33% | 31.5% |
| Hamburg, NY | 9,672 | 65% | 35.8% |
| Wapakoneta, OH | 9,662 | 72% | 49.2% |
| Clarksville, AR | 9,661 | 41% | 15.1% |
| Oakville, CT | 9,679 | 59% | 22.4% |
| Key Largo, FL | 9,670 | 61% | 26.0% |
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