Keystone
Town in Pennington County, South Dakota
Keystone is a town in Pennington County, South Dakota, with 240 residents (2020 Census). It sits at 4,331 ft (1,320 m) above sea level. The nearest town is Hill City, 7.6 miles W.
- 240residents (2020 Census)
- 4,331 ftelevation · 1,320 m
- 3.0 sq miland area · 7.8 km²
- 80 / sq mipopulation density
- 57751ZIP code
About Keystone
Keystone is a city in the Black Hills region of Pennington County, South Dakota, United States. The population was 240 at the 2020 census. It had its origins in 1883 as a mining town, and has since transformed itself into a resort town, serving the needs of the millions of visitors to the Mount Rushmore National Memorial, which is located just beyond the town limits. Keystone was heavily damaged in the 1972 Black Hills flood.
The town took its name from a local mine, which most likely was named after the keystone Masonic symbol.
Text: Wikipedia · CC BY-SA 4.0
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Living in Keystone
- Median household income
- $64,702
- Median home value
- $263,900
- Median rent
- $546/mo
- Median age
- 38.1
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Map of Keystone
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Open in Google Maps ›Keystone, SD population
Keystone had 240 residents in the 2020 Census.
| 2020 Census | 240 |
|---|---|
| Density | 80 per sq mi (31 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Keystone at a glance
| State | South Dakota (SD) |
|---|---|
| County | Pennington County |
| Type | Town |
| Population | 240 (2020) |
| Land area | 3.00 sq mi (7.8 km²) |
| Elevation | 4,331 ft (1,320 m) |
| Coordinates | 43.8949° N, 103.4268° W |
| ZIP code | 57751 |
| Census code (GEOID) | 4633820 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Keystone
- Hill City7.6 mi W
- Colonial Pine Hills9.9 mi NE
- Custer12.4 mi SW
- Hermosa12.4 mi E
- Johnson Siding13.1 mi N
- Rapid City16.0 mi NE
- Fairburn18.0 mi SE
- Blackhawk18.3 mi N
- Green Valley18.6 mi NE
- Rapid Valley19.3 mi NE
- Summerset21.0 mi N
- Pringle21.5 mi SW
Straight-line distance between town centers.
Frequently asked questions about Keystone
What county is Keystone in?
Keystone is in Pennington County, South Dakota.
What is the population of Keystone, SD?
240 people lived in Keystone at the 2020 Census.
What is the ZIP code of Keystone, SD?
The ZIP code of Keystone is 57751.
What is the elevation of Keystone?
4,331 feet (1,320 m) above sea level.
What towns are near Keystone?
Hill City (7.6 mi), Colonial Pine Hills (9.9 mi), Custer (12.4 mi), Hermosa (12.4 mi), Johnson Siding (13.1 mi).
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