| Index | Harbor Hills | 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 | Harbor Hills | New York | National |
| Completed 8th grade | 87.7% | 83.5% | 84.3% |
| Completed high school | 87.7% | 82.1% | 83.0% |
| Completed some college | 78.1% | 59.5% | 59.4% |
| Completed associate degree | 70.6% | 43.4% | 38.5% |
| Completed bachelors | 67.2% | 34.7% | 30.3% |
| Completed masters | 43.6% | 15.1% | 11.5% |
| Completed professional degree | 13.5% | 4.2% | 3.3% |
| Completed doctorate | 2.9% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Harbor Hills. Using the proficiency score averages, the average test scores for Harbor Hills, NY schools is n/a. The average student to teacher ratio is n/a. In Harbor Hills, NY, an average of 87.7% of students have completed 8th grade and an average of 87.7% 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% |
| Glen Head, NY | 4,979 | 89% | 85.7% |
| Harbor Hills, NY | 370 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Willisburg, KY | 370 | 61% | 26.0% |
| Calvin, OK | 370 | 48% | 1.0% |
| Maynard, MN | 370 | 60% | 24.0% |
| Cromwell, MN | 370 | 53% | 10.9% |
| Protection, KS | 370 | 39% | 19.8% |
| Harbor Hills, NY | 370 | n/a |