| Index | Northwest Harbor | 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 | Northwest Harbor | New York | National |
| Completed 8th grade | 93.7% | 83.5% | 84.3% |
| Completed high school | 93.7% | 82.1% | 83.0% |
| Completed some college | 68.4% | 59.5% | 59.4% |
| Completed associate degree | 54.9% | 43.4% | 38.5% |
| Completed bachelors | 50.5% | 34.7% | 30.3% |
| Completed masters | 28.1% | 15.1% | 11.5% |
| Completed professional degree | 7.4% | 4.2% | 3.3% |
| Completed doctorate | 4.0% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Northwest Harbor. Using the proficiency score averages, the average test scores for Northwest Harbor, NY schools is n/a. The average student to teacher ratio is n/a. In Northwest Harbor, NY, an average of 93.7% of students have completed 8th grade and an average of 93.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Amagansett, NY | 510 | 80% | 66.7% |
| Sag Harbor, NY | 1,959 | 65% | 34.4% |
| East Hampton, NY | 920 | 63% | 31.0% |
| Cutchogue, NY | 2,948 | 59% | 21.9% |
| Montauk, NY | 3,563 | 55% | 13.5% |
| Northwest Harbor, NY | 4,138 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Haleyville, AL | 4,139 | 42% | 13.2% |
| North Wilkesboro, NC | 4,139 | 40% | 16.9% |
| Falls City, NE | 4,139 | 53% | 10.1% |
| Grafton, ND | 4,139 | 37% | 23.6% |
| Lincoln, ND | 4,140 | 44% | 9.4% |
| Northwest Harbor, NY | 4,138 | n/a |
Here are the best places to live in New York
These are the 10 cheapest cities in New York
Check out the 10 safest cities in New York
Most Dangerous Cities In The US