| Zip Code | City | Population ↓ |
|---|---|---|
| 12953 | Malone | 13,323 |
| 12983 | Saranac Lake | 7,336 |
| 12986 | Tupper Lake | 5,356 |
| 13655 | Hogansburg | 3,669 |
| 12966 | North Bangor | 3,152 |
| 12920 | Chateaugay | 2,429 |
| 12916 | Brushton | 2,375 |
| 12926 | Constable | 2,325 |
| 12957 | Moira | 1,647 |
| 12937 | Fort Covington | 1,464 |
| 12917 | Burke | 1,232 |
| 12980 | Saint Regis Falls | 1,118 |
| 12913 | Bloomingdale | 1,077 |
| 12989 | Vermontville | 970 |
| 12970 | Paul Smiths | 937 |
| 12914 | Bombay | 876 |
| 12930 | Dickinson Center | 843 |
| 12945 | Lake Clear | 528 |
| 12969 | Owls Head | 219 |
| 12976 | Rainbow Lake | 175 |
| 12939 | Gabriels | 141 |
| 12915 | Brainardsville | 58 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 22 ZCTAs in Franklin County, New York (US Census).