9 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 66547 | Wamego | 8,387 |
| 66536 | Saint Marys | 4,103 |
| 66535 | Saint George | 3,729 |
| 66521 | Onaga | 1,444 |
| 66549 | Westmoreland | 1,311 |
| 66422 | Emmett | 1,183 |
| 66520 | Olsburg | 681 |
| 66432 | Havensville | 554 |
| 66407 | Belvue | 309 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 9 ZCTAs in Pottawatomie County, Kansas (US Census).