| Zip Code | City | Population ↓ |
|---|---|---|
| 67152 | Wellington | 9,006 |
| 67110 | Mulvane | 8,423 |
| 67013 | Belle Plaine | 3,099 |
| 67031 | Conway Springs | 2,503 |
| 67022 | Caldwell | 1,562 |
| 67119 | Oxford | 1,199 |
| 67140 | South Haven | 990 |
| 67120 | Peck | 857 |
| 67004 | Argonia | 800 |
| 67051 | Geuda Springs | 412 |
| 67106 | Milton | 295 |
| 67103 | Mayfield | 232 |
| 67105 | Milan | 168 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 13 ZCTAs in Sumner County, Kansas (US Census).