School districts and code numbers - Suffolk County
| Name | Code number |
|---|---|
| Amagansett | 013 |
| Amityville | 014 |
| Babylon | 030 |
| Bayport-Blue Point | 039 |
| Bay Shore | 038 |
| Brentwood | 059 |
| Bridgehampton | 062 |
| Center Moriches | 096 |
| Central Islip | 097 |
| Cold Spring Harbor | 123 |
| Commack | 125 |
| Comsewogue | 126 |
| Connetquot | 127 |
| Copiague | 130 |
| Deer Park | 142 |
| East Hampton | 159 |
| East Islip | 161 |
| East Moriches | 163 |
| Eastport/South Manor | 170 |
| East Quogue | 164 |
| Elwood | 186 |
| Farmingdale | 191 |
| Fire Island | 193 |
| Fishers Island | 194 |
| Greenport | 239 |
| Half Hollow Hills | 250 |
| Hampton Bays | 255 |
| Harborfields | 258 |
| Hauppauge | 264 |
| Huntington | 292 |
| Islip | 304 |
| Kings Park | 321 |
| Lindenhurst | 344 |
| Longwood | 392 |
| Mattituck-Cutchogue | 382 |
| Middle Country | 391 |
| Miller Place | 397 |
| Montauk | 404 |
| Mount Sinai | 414 |
| New Suffolk | 429 |
| North Babylon | 440 |
| Northport-East Northport | 452 |
| Oysterponds | 477 |
| Patchogue-Medford | 481 |
| Port Jefferson | 509 |
| Quogue | 521 |
| Remsenburg-Speonk | 529 |
| Riverhead | 537 |
| Rocky Point | 540 |
| Sachem | 553 |
| Sagaponack | 555 |
| Sag Harbor | 554 |
| Sayville | 566 |
| Shelter Island | 580 |
| Shoreham-Wading River | 585 |
| Smithtown | 590 |
| Southampton | 608 |
| South Country | 596 |
| South Huntington | 599 |
| Southold | 610 |
| Springs | 617 |
| Three Village | 635 |
| Tuckahoe Common | 645 |
| Wainscott | 661 |
| West Babylon | 684 |
| Westhampton Beach | 693 |
| West Islip | 688 |
| William Floyd | 381 |
| Wyandanch | 712 |
Updated: