| Index | Port Jefferson Station | 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 | 1 | 1,092 | 24,874 |
| Total post-secondary schools | n/a | 483 | 7,963 |
| Index | Port Jefferson Station | New York | National |
| Completed 8th grade | 89.1% | 83.5% | 84.3% |
| Completed high school | 88.8% | 82.1% | 83.0% |
| Completed some college | 62.4% | 59.5% | 59.4% |
| Completed associate degree | 42.6% | 43.4% | 38.5% |
| Completed bachelors | 34.2% | 34.7% | 30.3% |
| Completed masters | 18.5% | 15.1% | 11.5% |
| Completed professional degree | 4.2% | 4.2% | 3.3% |
| Completed doctorate | 2.4% | 1.5% | 1.3% |
There are a total of n/a public schools, 1 private schools and n/a post-secondary schools in Port Jefferson Station. Using the proficiency score averages, the average test scores for Port Jefferson Station, NY schools is n/a. The average student to teacher ratio is n/a. In Port Jefferson Station, NY, an average of 89.1% of students have completed 8th grade and an average of 88.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Westport, CT | 28,385 | 84% | 75.7% |
| Shoreham, NY | 390 | 82% | 69.8% |
| West Sayville, NY | 5,133 | 82% | 69.8% |
| Hauppauge, NY | 20,417 | 80% | 66.3% |
| Setauket-East Setauket, NY | 14,614 | 80% | 65.6% |
| Port Jefferson Station, NY | 7,798 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Fairfax, CA | 7,797 | 71% | 48.3% |
| Hartsville, SC | 7,799 | 42% | 12.2% |
| Kaufman, TX | 7,802 | 45% | 6.8% |
| Breinigsville, PA | 7,793 | 81% | 68.8% |
| Lamar, CO | 7,804 | 35% | 26.8% |
| Port Jefferson Station, NY | 7,798 | n/a |
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