Ralph, SD
ZIP Codes in Ralph, South Dakota
January 19, 2026
| ZIP Code | Population | Coordinates |
|---|---|---|
| 57650 | 13 | 45.8309, -103.0347 |
Ralph has 1 ZIP code
ZIP Codes in Ralph, South Dakota
January 19, 2026
| ZIP Code | Population | Coordinates |
|---|---|---|
| 57650 | 13 | 45.8309, -103.0347 |