Keystone, SD ZIP Codes, Coordinates & Counties
Keystone, South Dakota has 1 ZIP code in Pennington county. The approximate center of Keystone is 43.855, -103.387. Keystone has about 3,697 known street addresses.
ZIP codes in Keystone, SD
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 57751 | Pennington | 43.855 | -103.387 |
Counties Keystone spans
Pennington
Most common streets in Keystone
1st, Mitchell, Blair, Winter, 3rd, Dean, George, Mohler, Thomas, Milo
Frequently asked questions
What ZIP codes are in Keystone, SD?
Keystone, South Dakota has 1 ZIP code, ranging from 57751 to 57751. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Keystone, SD in?
Keystone is in Pennington county.
What are the latitude and longitude of Keystone, SD?
The approximate center of Keystone, South Dakota is latitude 43.855, longitude -103.387. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Keystone, SD have?
Keystone has 1 ZIP code.
How many addresses are in Keystone, SD?
Keystone, South Dakota has about 3,697 known street addresses in the sthan.io US address database.
What are the most common streets in Keystone, SD?
Some of the most common street names in Keystone are 1st, Mitchell, Blair, Winter, 3rd, Dean.
What cities are near Keystone, SD?
Cities near Keystone include Custer (15 mi), Rapid City (17 mi), Hermosa (18 mi), Fairburn (19 mi), Pringle (20 mi).
Cities near Keystone
Custer, SD (15 mi) Rapid City, SD (17 mi) Hermosa, SD (18 mi) Fairburn, SD (19 mi) Pringle, SD (20 mi) Black Hawk, SD (22 mi) Hill City, SD (23 mi) Ellsworth Afb, SD (25 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database