Ralph, SD ZIP code
The ZIP code for Ralph, South Dakota is 57650. It is in Harding County.
- Population in these ZIPs
- 17
- Avg. median income
- —population-weighted
- Typical home value
- —population-weighted
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Ralph, SD ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 57650 | 17 | — | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Ralph
- Ludlow 15 mi
- Lodgepole 16 mi
- Reva 24 mi
- Prairie City 25 mi
- Buffalo 33 mi
- Lemmon 39 mi
- Bison 39 mi
- Camp Crook 50 mi
- Meadow 52 mi
- Keldron 56 mi
- Mud Butte 60 mi
- Morristown 64 mi
Frequently asked questions
What is the ZIP code for Ralph, SD?
The ZIP code for Ralph, SD is 57650.
What county is Ralph, South Dakota in?
Ralph ZIP codes are in Harding County.