| Index | Greenport | New York | National |
| Average Test Scores | 52% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 2 | 4,060 | 79,221 |
| Total private schools | n/a | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
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| Index | Greenport | New York | National |
| Completed 8th grade | 79.0% | 83.5% | 84.3% |
| Completed high school | 78.7% | 82.1% | 83.0% |
| Completed some college | 54.7% | 59.5% | 59.4% |
| Completed associate degree | 42.5% | 43.4% | 38.5% |
| Completed bachelors | 33.1% | 34.7% | 30.3% |
| Completed masters | 14.5% | 15.1% | 11.5% |
| Completed professional degree | 4.7% | 4.2% | 3.3% |
| Completed doctorate | 2.2% | 1.5% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in Greenport. Using the proficiency score averages, the average test scores for Greenport, NY schools is 52%. The average student to teacher ratio is n/a. In Greenport, NY, an average of 79.0% of students have completed 8th grade and an average of 78.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Amagansett, NY | 530 | 80% | 66.7% |
| Mattituck, NY | 5,017 | 77% | 60.4% |
| Madison Center, CT | 2,087 | 77% | 60.4% |
| Westbrook Center, CT | 2,322 | 77% | 60.4% |
| Niantic, CT | 3,169 | 77% | 59.4% |
| Greenport, NY | 2,113 | 52% | 8.9% |
| City | Population | Avg. Test Scores | National Avg. |
| WaKeeney, KS | 2,113 | 32% | 32.8% |
| Byron, CA | 2,113 | 47% | 2.1% |
| South Amherst, OH | 2,112 | 73% | 52.1% |
| Trempealeau, WI | 2,114 | 45% | 7.3% |
| Reed City, MI | 2,114 | 35% | 27.4% |
| Greenport, NY | 2,113 | 52% | 8.9% |
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