| Index | Oyster Bay | New York | National |
| Average Test Scores | 76% | 56% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 2 | 4,060 | 79,221 |
| Total private schools | 4 | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Oyster Bay | New York | National |
| Completed 8th grade | 90.6% | 83.5% | 84.3% |
| Completed high school | 88.0% | 82.1% | 83.0% |
| Completed some college | 63.3% | 59.5% | 59.4% |
| Completed associate degree | 49.1% | 43.4% | 38.5% |
| Completed bachelors | 43.9% | 34.7% | 30.3% |
| Completed masters | 17.1% | 15.1% | 11.5% |
| Completed professional degree | 3.4% | 4.2% | 3.3% |
| Completed doctorate | 1.0% | 1.5% | 1.3% |
There are a total of 2 public schools, 4 private schools and n/a post-secondary schools in Oyster Bay. Using the proficiency score averages, the average test scores for Oyster Bay, NY schools is 76%. The average student to teacher ratio is n/a. In Oyster Bay, NY, an average of 90.6% of students have completed 8th grade and an average of 88.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Sea Cliff, NY | 5,069 | 92% | 91.2% |
| Old Westbury, NY | 4,582 | 91% | 88.1% |
| Jericho, NY | 13,730 | 90% | 86.6% |
| Old Bethpage, NY | 5,439 | 90% | 86.0% |
| Glen Head, NY | 4,860 | 89% | 85.2% |
| Oyster Bay, NY | 6,226 | 76% | 57.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Riverside, MD | 6,226 | 34% | 29.3% |
| International Falls, MN | 6,226 | 59% | 22.6% |
| Portland, IN | 6,225 | 49% | 0.8% |
| Harriman, TN | 6,223 | 34% | 29.3% |
| Kermit, TX | 6,219 | 20% | 58.4% |
| Oyster Bay, NY | 6,226 | 76% | 57.9% |
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