ZIP Code 57312 – Alpena, South Dakota
The 57312 ZIP Code belongs to Alpena, South Dakota. The population in this 57312 ZIP code is 619. The latitude is 44.19646 and longitude is -98.38564 in 57312 Alpena, South Dakota. The time zone for this 57312 ZIP code is America/Chicago.
| City | Alpena |
| Zip Code | 57312 |
| State | South Dakota |
| County | Beadle |
| Population | 619 |
| Latitude | 44.19646 |
| Longitude | -98.38564 |
| Time Zone | America/Chicago |