| Index | Lake Mary | Florida | National |
| Average Test Scores | 61% | 55% | 48% |
| Student/Teacher ratio | 18:1 | 17:1 | 16:1 |
| Total public schools | 5 | 3,388 | 79,221 |
| Total private schools | 4 | 1,640 | 24,874 |
| Total post-secondary schools | 1 | 466 | 7,963 |
| Index | Lake Mary | Florida | National |
| Completed 8th grade | 90.6% | 84.0% | 84.3% |
| Completed high school | 89.8% | 83.0% | 83.0% |
| Completed some college | 78.4% | 58.0% | 59.4% |
| Completed associate degree | 57.8% | 37.4% | 38.5% |
| Completed bachelors | 48.6% | 27.9% | 30.3% |
| Completed masters | 15.0% | 10.0% | 11.5% |
| Completed professional degree | 4.1% | 3.1% | 3.3% |
| Completed doctorate | 1.3% | 1.1% | 1.3% |
There are a total of 5 public schools, 4 private schools and 1 post-secondary schools in Lake Mary. Using the proficiency score averages, the average test scores for Lake Mary, FL schools is 61%. The average student to teacher ratio is 18:1. In Lake Mary, FL, an average of 90.6% of students have completed 8th grade and an average of 89.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Chuluota, FL | 2,392 | 78% | 61.5% |
| Oviedo, FL | 37,545 | 74% | 54.8% |
| Winter Springs, FL | 34,439 | 70% | 46.6% |
| Longwood, FL | 14,117 | 69% | 44.3% |
| DeBary, FL | 19,761 | 65% | 35.9% |
| Lake Mary, FL | 15,478 | 61% | 26.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Roanoke Rapids, NC | 15,454 | 31% | 36.3% |
| Franklin Park, NJ | 15,454 | 48% | 0.5% |
| New Port Richey, FL | 15,503 | 50% | 4.2% |
| Long Beach, MS | 15,450 | 63% | 31.7% |
| Jamestown, ND | 15,441 | 56% | 15.6% |
| Lake Mary, FL | 15,478 | 61% | 26.5% |
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