| Zip Code | City | Population ↓ |
|---|---|---|
| 67301 | Independence | 12,932 |
| 67337 | Coffeyville | 10,995 |
| 67335 | Cherryvale | 3,334 |
| 67333 | Caney | 2,446 |
| 67344 | Elk City | 716 |
| 67347 | Havana | 493 |
| 67340 | Dearing | 381 |
| 67351 | Liberty | 375 |
| 67364 | Tyro | 203 |
| 67363 | Sycamore | 123 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 10 ZCTAs in Montgomery County, Kansas (US Census).