| Index | Nissequogue | 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 | Nissequogue | New York | National |
| Completed 8th grade | 96.8% | 83.5% | 84.3% |
| Completed high school | 96.8% | 82.1% | 83.0% |
| Completed some college | 84.4% | 59.5% | 59.4% |
| Completed associate degree | 67.3% | 43.4% | 38.5% |
| Completed bachelors | 60.8% | 34.7% | 30.3% |
| Completed masters | 39.0% | 15.1% | 11.5% |
| Completed professional degree | 17.3% | 4.2% | 3.3% |
| Completed doctorate | 5.4% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Nissequogue. Using the proficiency score averages, the average test scores for Nissequogue, NY schools is n/a. The average student to teacher ratio is n/a. In Nissequogue, NY, an average of 96.8% of students have completed 8th grade and an average of 96.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Old Bethpage, NY | 5,450 | 90% | 86.5% |
| Cold Spring Harbor, NY | 2,864 | 87% | 81.3% |
| Westport, CT | 27,511 | 84% | 75.7% |
| Plainview, NY | 26,267 | 83% | 72.1% |
| Shoreham, NY | 375 | 82% | 69.8% |
| Nissequogue, NY | 1,599 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Saranac, MI | 1,599 | 49% | 1.0% |
| Maple Park, IL | 1,599 | 50% | 4.7% |
| Sneedville, TN | 1,599 | 25% | 47.9% |
| North Lewisburg, OH | 1,598 | 68% | 42.4% |
| West Liberty, OH | 1,600 | 79% | 64.1% |
| Nissequogue, NY | 1,599 | n/a |
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