| Index | Southampton | New York | National |
| Average Test Scores | 48% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 4 | 4,060 | 79,221 |
| Total private schools | 2 | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Southampton | New York | National |
| Completed 8th grade | 96.3% | 83.5% | 84.3% |
| Completed high school | 95.0% | 82.1% | 83.0% |
| Completed some college | 72.2% | 59.5% | 59.4% |
| Completed associate degree | 57.5% | 43.4% | 38.5% |
| Completed bachelors | 53.1% | 34.7% | 30.3% |
| Completed masters | 23.8% | 15.1% | 11.5% |
| Completed professional degree | 8.5% | 4.2% | 3.3% |
| Completed doctorate | 1.4% | 1.5% | 1.3% |
There are a total of 4 public schools, 2 private schools and n/a post-secondary schools in Southampton. Using the proficiency score averages, the average test scores for Southampton, NY schools is 48%. The average student to teacher ratio is n/a. In Southampton, NY, an average of 96.3% of students have completed 8th grade and an average of 95.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Amagansett, NY | 530 | 80% | 66.7% |
| Quogue, NY | 623 | 80% | 66.7% |
| Mattituck, NY | 5,017 | 77% | 60.4% |
| Westhampton Beach, NY | 1,911 | 73% | 51.7% |
| Sag Harbor, NY | 2,034 | 65% | 34.4% |
| Southampton, NY | 3,397 | 48% | 0.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Plainview, MN | 3,395 | 66% | 37.0% |
| Heavener, OK | 3,394 | 23% | 52.6% |
| Chandler, OK | 3,394 | 34% | 28.5% |
| Hauula, HI | 3,394 | 32% | 33.3% |
| Andrews AFB, MD | 3,393 | 38% | 21.9% |
| Southampton, NY | 3,397 | 48% | 0.8% |
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