| Post Office | Eagle Butte |
| Division | Dewey |
| Pincode | 57625 |
| Post Office | Timber Lake |
| Division | Dewey |
| Pincode | 57656 |
| Post Office | Ridgeview |
| Division | Dewey |
| Pincode | 57652 |
| Post Office | Whitehorse |
| Division | Dewey |
| Pincode | 57661 |
| Post Office | Lantry |
| Division | Dewey |
| Pincode | 57636 |
| Post Office | Glencross |
| Division | Dewey |
| Pincode | 57630 |
6 City in Dewey | List of Zip Codes Location In South Dakota and Your selected County Dewey