13 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 67152 | Wellington | 9,212 |
| 67110 | Mulvane | 8,722 |
| 67013 | Belle Plaine | 2,678 |
| 67031 | Conway Springs | 2,497 |
| 67022 | Caldwell | 1,436 |
| 67119 | Oxford | 1,287 |
| 67140 | South Haven | 971 |
| 67004 | Argonia | 801 |
| 67120 | Peck | 575 |
| 67106 | Milton | 560 |
| 67051 | Geuda Springs | 404 |
| 67103 | Mayfield | 180 |
| 67105 | Milan | 158 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 13 ZCTAs in Sumner County, Kansas (US Census).