| Index | Lake Success | New York | National |
| Average Test Scores | n/a | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | n/a | 4,060 | 79,221 |
| Total private schools | n/a | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Lake Success | New York | National |
| Completed 8th grade | 93.7% | 83.5% | 84.3% |
| Completed high school | 91.5% | 82.1% | 83.0% |
| Completed some college | 68.2% | 59.5% | 59.4% |
| Completed associate degree | 62.8% | 43.4% | 38.5% |
| Completed bachelors | 59.6% | 34.7% | 30.3% |
| Completed masters | 29.9% | 15.1% | 11.5% |
| Completed professional degree | 14.8% | 4.2% | 3.3% |
| Completed doctorate | 3.0% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Lake Success. Using the proficiency score averages, the average test scores for Lake Success, NY schools is n/a. The average student to teacher ratio is n/a. In Lake Success, NY, an average of 93.7% of students have completed 8th grade and an average of 91.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Sea Cliff, NY | 5,212 | 92% | 91.7% |
| Cedarhurst, NY | 6,786 | 91% | 89.6% |
| Old Westbury, NY | 4,784 | 91% | 88.5% |
| Jericho, NY | 14,448 | 90% | 87.1% |
| Old Bethpage, NY | 5,640 | 90% | 86.5% |
| Lake Success, NY | 3,341 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Pottsville, AR | 3,341 | 65% | 35.7% |
| Pendleton, SC | 3,341 | 58% | 20.1% |
| Mount Shasta, CA | 3,339 | 43% | 10.4% |
| St. Maries, ID | 3,338 | 41% | 14.6% |
| Melbourne Beach, FL | 3,344 | 84% | 75.0% |
| Lake Success, NY | 3,341 | n/a |
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