| Index | North Sea | 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 | North Sea | New York | National |
| Completed 8th grade | 94.0% | 83.5% | 84.3% |
| Completed high school | 93.0% | 82.1% | 83.0% |
| Completed some college | 74.8% | 59.5% | 59.4% |
| Completed associate degree | 57.5% | 43.4% | 38.5% |
| Completed bachelors | 48.0% | 34.7% | 30.3% |
| Completed masters | 17.4% | 15.1% | 11.5% |
| Completed professional degree | 4.8% | 4.2% | 3.3% |
| Completed doctorate | 1.6% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in North Sea. Using the proficiency score averages, the average test scores for North Sea, NY schools is n/a. The average student to teacher ratio is n/a. In North Sea, NY, an average of 94.0% of students have completed 8th grade and an average of 93.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Amagansett, NY | 510 | 80% | 66.7% |
| Quogue, NY | 600 | 80% | 66.7% |
| Mattituck, NY | 4,898 | 77% | 60.4% |
| Westhampton Beach, NY | 1,869 | 73% | 51.7% |
| Sag Harbor, NY | 1,959 | 65% | 34.4% |
| North Sea, NY | 5,263 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Williamsburg, KY | 5,266 | 56% | 16.7% |
| Dos Palos, CA | 5,266 | 24% | 49.7% |
| Waynesville, MO | 5,260 | 50% | 4.7% |
| Bowling Green, MO | 5,259 | 44% | 9.4% |
| Scarborough, ME | 5,268 | 65% | 35.1% |
| North Sea, NY | 5,263 | n/a |
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