| ZIP Code | 57650 |
| City | Ralph |
| State | South Dakota (SD) |
| County | Harding |
| Timezone | America/Denver |
| Coordinates | 45.8346000, -103.0303300 |
| Population | 17 |
| ZIP Type | STANDARD |
| Country | United States |
ZIP code 57650 covers the community of Ralph in South Dakota, the United States. This area falls under Harding County.
Ralph has a reported population of 17. It's a quieter, less populous area than the typical South Dakota ZIP code (avg. ~2,435).
Other ZIP code codes in South Dakota serve areas such as Sioux Falls, Rapid City.
The ZIP code for Ralph, South Dakota is 57650.
57650 is located in Harding County, South Dakota.
The population of 57650 (Ralph) is approximately 17 people.
57650 is less populated than the typical South Dakota ZIP code, which averages around 2,435 people.
ZIP code codes near 57650 include 57106, 57701, 57702.