| Zip Code | City | Population ↓ |
|---|---|---|
| 18801 | Montrose | 7,782 |
| 18847 | Susquehanna | 5,257 |
| 18421 | Forest City | 4,424 |
| 18834 | New Milford | 3,297 |
| 18446 | Nicholson | 3,268 |
| 18822 | Hallstead | 3,122 |
| 18630 | Meshoppen | 2,933 |
| 18470 | Union Dale | 2,180 |
| 18844 | Springville | 1,619 |
| 18826 | Kingsley | 1,580 |
| 18812 | Brackney | 1,564 |
| 18818 | Friendsville | 1,253 |
| 18465 | Thompson | 1,246 |
| 18824 | Hop Bottom | 1,165 |
| 18821 | Great Bend | 1,029 |
| 18830 | Little Meadows | 549 |
| 18441 | Lenoxville | 444 |
| 18843 | South Montrose | 347 |
| 18828 | Lawton | 215 |
| 18825 | Jackson | 165 |
| 18842 | South Gibson | 164 |
| 18823 | Harford | 101 |
| 18430 | Herrick Center | 81 |
| 18816 | Dimock | 75 |
| 18820 | Gibson | 59 |
| 18413 | Clifford | 52 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 26 ZCTAs in Susquehanna County, Pennsylvania (US Census).