| William Floyd High School | 0.0 |
2928 | 63.7% | 18.3% | 13.8% | 1.0% | 2.5% |
| Center Moriches High School | 2.9 |
566 | 77.7% | 8.8% | 6.0% | 5.8% | 1.6% |
| Eastport South Manor Junior Senior High School | 3.8 |
1833 | 92.5% | 3.9% | 2.1% | 0.1% | 1.4% |
| Bellport Senior High School | 3.8 |
1346 | 47.0% | 22.8% | 27.4% | 0.3% | 1.9% |
| Longwood High School | 7.0 |
2845 | 57.9% | 17.9% | 19.2% | 0.2% | 3.3% |
| Patchogue Medford High School | 7.5 |
2646 | 69.8% | 22.2% | 5.4% | 0.3% | 1.9% |
| Sachem High School East | 9.6 |
2347 | 85.3% | 7.0% | 2.1% | 0.2% | 5.4% |
| Westhampton Beach Senior High School | 10.9 |
1006 | 81.7% | 12.2% | 2.1% | 0.2% | 2.2% |
| Bayport Blue Point High School | 11.1 |
769 | 93.0% | 3.5% | 1.0% | 0.1% | 2.1% |
| Shoreham Wading River High School | 11.2 |
834 | 91.1% | 4.2% | 2.5% | - | 2.2% |
| Rocky Point High School | 12.1 |
1047 | 93.1% | 4.5% | 0.4% | - | 1.3% |
| Newfield High School | 12.7 |
1694 | 75.1% | 13.6% | 5.3% | 0.1% | 5.5% |
| Miller Place High School | 12.9 |
973 | 88.7% | 5.3% | 1.8% | 0.2% | 2.7% |
| Comsewogue High School | 13.1 |
1309 | 76.2% | 17.9% | 2.4% | - | 3.2% |
| Sayville High School | 13.2 |
1080 | 94.4% | 3.6% | 0.6% | 0.1% | 1.1% |
| Riverhead Senior High School | 13.6 |
1525 | 55.5% | 21.8% | 20.1% | 0.7% | 1.2% |
| Sachem High School North | 13.7 |
2326 | 85.1% | 8.4% | 1.7% | 0.0% | 4.6% |
| Centereach High School | 14.0 |
1641 | 78.5% | 10.7% | 4.2% | - | 6.2% |
| Mount Sinai High School | 14.4 |
814 | 90.5% | 2.7% | 2.0% | 0.1% | 4.7% |
| Ward Melville Senior High School | 15.1 |
1848 | 85.0% | 5.0% | 1.7% | 0.1% | 7.6% |
| Connetquot High School | 15.1 |
2101 | 86.3% | 7.9% | 1.7% | 0.1% | 3.8% |
| Earl L Vandermeulen High School | 16.0 |
401 | 86.8% | 6.2% | 1.0% | - | 3.5% |
| East Islip High School | 17.5 |
1582 | 87.4% | 8.8% | 1.3% | 0.1% | 1.1% |
| Smithtown High School East | 17.7 |
1755 | 91.6% | 4.0% | 0.9% | 0.1% | 3.2% |
| Hauppauge High School | 18.6 |
1382 | 84.4% | 5.7% | 2.2% | 0.1% | 7.5% |
| Central Islip Senior High School | 18.7 |
1788 | 7.5% | 59.8% | 28.9% | 0.1% | 3.6% |
| Hampton Bays Secondary School | 19.0 |
636 | 62.3% | 35.5% | 1.1% | 0.2% | 0.3% |
| Islip High School | 19.7 |
1162 | 75.1% | 14.9% | 5.3% | 0.1% | 3.8% |
| Brentwood High School | 21.2 |
3916 | 9.3% | 72.1% | 16.3% | 0.2% | 2.0% |
| Smithtown High School West | 21.3 |
1753 | 93.7% | 2.6% | 0.7% | 0.1% | 2.9% |
| Bay Shore Senior High School | 21.4 |
1872 | 37.7% | 35.1% | 22.8% | 0.1% | 3.9% |
| Kings Park High School | 21.7 |
1260 | 94.4% | 2.0% | 0.4% | 0.1% | 3.0% |
| Mattituck Junior Senior High School | 22.5 |
805 | 89.6% | 5.1% | 3.1% | - | 1.6% |
| Commack High School | 23.6 |
2474 | 87.1% | 4.8% | 1.2% | 0.1% | 6.2% |
| West Islip Senior High School | 24.3 |
1813 | 92.4% | 4.5% | 0.6% | 0.1% | 1.6% |
