| Adams, Jefferson |
13605 |
| Adams Center, Jefferson |
13606 |
| Adams Cove, Jefferson |
13634 |
| Alex Bay, Jefferson |
13607 |
| Alexandra Bay, Jefferson |
13607 |
| Alexandria, Jefferson |
13607 |
| Alexandria Bay, Jefferson |
13607 |
| Antwerp, Jefferson |
13608 |
| Belleville, Jefferson |
13611 |
| Black River, Jefferson |
13612 |
| Boultons Beach, Jefferson |
13685 |
| Brownville, Jefferson |
13615 |
| Calcium, Jefferson |
13616 |
| Cape Vincent, Jefferson |
13618 |
| Carthage, Jefferson |
13619 |
| Champion, Jefferson |
13619 |
| Champion Huddle, Jefferson |
13619 |
| Chaumont, Jefferson |
13622 |
| Clayton, Jefferson |
13624 |
| Collins Landing, Jefferson |
13607 |
| Deferiet, Jefferson |
13628 |
| Depauville, Jefferson |
13632 |
| Dexter, Jefferson |
13634 |
| Diamond, Jefferson |
13659 |
| Edgewood Park, Jefferson |
13607 |
| Ellisburg, Jefferson |
13636 |