13 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 67152 | Wellington | 9,199 |
| 67110 | Mulvane | 8,222 |
| 67013 | Belle Plaine | 2,671 |
| 67031 | Conway Springs | 2,527 |
| 67022 | Caldwell | 1,579 |
| 67119 | Oxford | 1,238 |
| 67140 | South Haven | 995 |
| 67120 | Peck | 807 |
| 67004 | Argonia | 781 |
| 67106 | Milton | 472 |
| 67051 | Geuda Springs | 363 |
| 67105 | Milan | 156 |
| 67103 | Mayfield | 141 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 13 ZCTAs in Sumner County, Kansas (US Census).