| 1. Alexandria Central School District | 34 Bolton Ave Alexandria Bay,NY 13607 | 3154829971 |
| Grade: PK-12 | Schools: 2 | Students: 657 |
| 2. Belleville Henderson Central School District | 8372 Countyroute 75 Belleville,NY 13611 | 3158465826 |
| Grade: PK-12 | Schools: 1 | Students: 507 |
| 3. Carthage Central School District | 25059 Countyroute 197 Carthage,NY 13619 | 3154935120 |
| Grade: KG-12 | Schools: 5 | Students: 3481 |
| 4. General Brown Central School District | 17643 Cemetery Rd Dexter,NY 13634 | 3156395100 |
| Grade: PK-12 | Schools: 3 | Students: 1552 |
| 5. Indian River Central School District | 32735b Countyroute 29 Philadelphia,NY 13673 | 3156423441 |
| Grade: PK-12 | Schools: 8 | Students: 4106 |
| 6. Jefferson-Lewis-Hamilton-Herkimer-Oneida Boces | 20104 State Rte 3 Watertown,NY 13601 | 3157797010 |
| Grade: N-N | Schools: 1 | Students: -2 |
| 7. La Fargeville Central School District | 20414 Sunrise Ave La Fargeville,NY 13656 | 3156582241 |
| Grade: PK-12 | Schools: 1 | Students: 613 |
| 8. Lyme Central School District | 11868 Academy St Chaumont,NY 13622 | 3156492417 |
| Grade: PK-12 | Schools: 1 | Students: 357 |
| 9. Sackets Harbor Central School District | 215 South Broad St Sackets Harbor,NY 13685 | 3156463575 |
| Grade: KG-12 | Schools: 1 | Students: 465 |
| 10. South Jefferson Central School District | 13180 Usroute 11 Adams Center,NY 13606 | 3155836104 |
| Grade: PK-12 | Schools: 4 | Students: 1981 |
| 11. Thousand Islands Central School District | 8483 Countyroute 9 Clayton,NY 13624 | 3156865594 |
| Grade: KG-12 | Schools: 4 | Students: 1088 |
| 12. Watertown City School District | 1351 Washington St Watertown,NY 13601 | 3157853700 |
| Grade: KG-12 | Schools: 8 | Students: 4267 |
The above table lists all the public school districts in jefferson county, , sorted by school district names alphabetically. Please click the school district name to browse all schools in the district. If you could not find your school district names or you do not know school district names, you can
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The table below lists the largest public schools in jefferson county, , sorted by the number of students.