| Index | Hewlett Bay Park | New York | National |
| Average Test Scores | 99% | 48% | 49% |
| 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 | Hewlett Bay Park | New York | National |
| Completed 8th grade | 94.7% | 83.5% | 84.3% |
| Completed high school | 94.7% | 82.1% | 83.0% |
| Completed some college | 87.8% | 59.5% | 59.4% |
| Completed associate degree | 77.2% | 43.4% | 38.5% |
| Completed bachelors | 74.9% | 34.7% | 30.3% |
| Completed masters | 38.8% | 15.1% | 11.5% |
| Completed professional degree | 25.9% | 4.2% | 3.3% |
| Completed doctorate | 3.4% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Hewlett Bay Park. Using the proficiency score averages, the average test scores for Hewlett Bay Park, NY schools is 99%. The average student to teacher ratio is n/a. In Hewlett Bay Park, NY, an average of 94.7% of students have completed 8th grade and an average of 94.7% have completed high school.
| City, State | Population | Avg. Test Scores | National Avg. |
| Old Westbury, NY | 4,582 | 91% | 85% |
| Manhasset, NY | 7,996 | 87% | 76% |
| Lake Success, NY | 3,084 | 85% | 73% |
| Searingtown, NY | 4,727 | 83% | 69% |
| Glen Head, NY | 4,860 | 83% | 69% |
| Hewlett Bay Park, NY | 366 | 99% | 100% |
| City, State | Population | Avg. Test Scores | National Avg. |
| Achille, OK | 366 | 72% | 47% |
| Belview, MN | 366 | 50% | 2% |
| Toone, TN | 366 | 45% | 10% |
| Dietrich, ID | 366 | 42% | 15% |
| Scotia, NE | 366 | 77% | 56% |
| Hewlett Bay Park, NY | 366 | 99% | 100% |
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