ZIP Code 57646 – Mound City, South Dakota
The 57646 ZIP Code belongs to Mound City, South Dakota. The population in this 57646 ZIP code is 248. The latitude is 45.68753 and longitude is -100.05395 in 57646 Mound City, South Dakota. The time zone for this 57646 ZIP code is America/Chicago.
| City | Mound City |
| Zip Code | 57646 |
| State | South Dakota |
| County | Campbell |
| Population | 248 |
| Latitude | 45.68753 |
| Longitude | -100.05395 |
| Time Zone | America/Chicago |