| Index | Gretna | Florida | National |
| Average Test Scores | n/a | 55% | 48% |
| Student/Teacher ratio | 18:1 | 17:1 | 16:1 |
| Total public schools | 1 | 3,388 | 79,221 |
| Total private schools | n/a | 1,640 | 24,874 |
| Total post-secondary schools | n/a | 466 | 7,963 |
| Index | Gretna | Florida | National |
| Completed 8th grade | 76.7% | 84.0% | 84.3% |
| Completed high school | 73.2% | 83.0% | 83.0% |
| Completed some college | 37.6% | 58.0% | 59.4% |
| Completed associate degree | 15.2% | 37.4% | 38.5% |
| Completed bachelors | 11.5% | 27.9% | 30.3% |
| Completed masters | 3.1% | 10.0% | 11.5% |
| Completed professional degree | 1.2% | 3.1% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of 1 public schools, n/a private schools and n/a post-secondary schools in Gretna. Using the proficiency score averages, the average test scores for Gretna, FL schools is n/a. The average student to teacher ratio is 18:1. In Gretna, FL, an average of 76.7% of students have completed 8th grade and an average of 73.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Hosford, FL | 629 | 59% | 22.9% |
| Quincy, FL | 7,237 | 46% | 5.0% |
| Chattahoochee, FL | 3,125 | 45% | 6.3% |
| Havana, FL | 2,193 | 42% | 12.5% |
| Gretna, FL | 1,164 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Kings Mills, OH | 1,164 | 83% | 73.5% |
| New Columbia, PA | 1,164 | 60% | 24.0% |
| Santee, SC | 1,165 | 50% | 4.2% |
| Chisholm, ME | 1,165 | 34% | 30.2% |
| Toledo, IL | 1,163 | 28% | 42.4% |
| Gretna, FL | 1,164 | n/a |
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