| Zip Code | City | Population ↓ |
|---|---|---|
| 54755 | Mondovi | 7,419 |
| 54629 | Fountain City | 2,471 |
| 54622 | Cochrane | 1,971 |
| 54610 | Alma | 1,547 |
| 54756 | Nelson | 947 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 5 ZCTAs in Buffalo County, Wisconsin (US Census).