Ralph, SD ZIP Codes, Coordinates & Counties
Ralph, South Dakota has 1 ZIP code in Harding county. The approximate center of Ralph is 45.839, -103.022. Ralph has about 288 known street addresses.
ZIP codes in Ralph, SD
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 57650 | Harding | 45.839 | -103.022 |
Counties Ralph spans
Harding
Most common streets in Ralph
Lincoln, Wagner
Frequently asked questions
What ZIP codes are in Ralph, SD?
Ralph, South Dakota has 1 ZIP code, ranging from 57650 to 57650. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Ralph, SD in?
Ralph is in Harding county.
What are the latitude and longitude of Ralph, SD?
The approximate center of Ralph, South Dakota is latitude 45.839, longitude -103.022. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Ralph, SD have?
Ralph has 1 ZIP code.
How many addresses are in Ralph, SD?
Ralph, South Dakota has about 288 known street addresses in the sthan.io US address database.
What are the most common streets in Ralph, SD?
Some of the most common street names in Ralph are Lincoln, Wagner.
What cities are near Ralph, SD?
Cities near Ralph include Lodgepole (15 mi), Ludlow (16 mi), Scranton (18 mi), Reeder (20 mi), Reva (23 mi).
Cities near Ralph
Lodgepole, SD (15 mi) Ludlow, SD (16 mi) Scranton, ND (18 mi) Reeder, ND (20 mi) Reva, SD (23 mi) Prairie City, SD (24 mi) Hettinger, ND (26 mi) Bowman, ND (31 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database