Complete ZIP Code Details
| ZIP Code | 57439 |
| City | Ferney |
| State | South Dakota (SD) |
| County | Brown |
| Timezone | America/Chicago |
| Coordinates | 45.3346400, -98.1000700 |
| ZIP Type | STANDARD |
| Country | United States |
| ZIP Code | 57439 |
| City | Ferney |
| State | South Dakota (SD) |
| County | Brown |
| Timezone | America/Chicago |
| Coordinates | 45.3346400, -98.1000700 |
| ZIP Type | STANDARD |
| Country | United States |