Mound City zipcode
| City | Mound City |
| ZIP Code | 57646 |
| Type | Standard |
| State Code | SD |
| State | South Dakota |
ZIP code of Mound City is 57646. This place is located in South Dakota state in US. To send any postal service to Mound City, you must use 57646 zipcode.
You should avoid following 1 city name of South Dakota to be used with the ZIP code 57646.
- Campbell, SD