Mountain Plains
Census-designated place in Lawrence County, South Dakota

Mountain Plains is an unincorporated community (census-designated place) in Lawrence County, South Dakota, with 327 residents (2020 Census). It sits at 4,193 ft (1,278 m) above sea level. The nearest town is Spearfish, 2.9 miles NE.
- 327residents (2020 Census)
- 4,193 ftelevation · 1,278 m
- 1.6 sq miland area · 4.1 km²
- 205 / sq mipopulation density
- 57799ZIP code
About Mountain Plains
Mountain Plains is an unincorporated area and census-designated place (CDP) in Lawrence County, South Dakota, United States. The population was 327 at the 2020 census. It was first listed as a CDP prior to the 2020 census.
It is in the northern part of the county, on the northern edge of the Black Hills. It is bordered to the north by the city of Spearfish. U.S. Route 14A forms the eastern edge of the CDP, following the canyon of Spearfish Creek.
Text: Wikipedia · CC BY-SA 4.0
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Living in Mountain Plains
- Median household income
- $248,558
- Median home value
- $613,200
- Median age
- 63.4
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Map of Mountain Plains
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Open in Google Maps ›Mountain Plains, SD population
Mountain Plains had 327 residents in the 2020 Census.
| 2020 Census | 327 |
|---|---|
| Density | 205 per sq mi (79 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Mountain Plains at a glance
| State | South Dakota (SD) |
|---|---|
| County | Lawrence County |
| Type | Census-designated place |
| Population | 327 (2020) |
| Land area | 1.59 sq mi (4.1 km²) |
| Elevation | 4,193 ft (1,278 m) |
| Coordinates | 44.4670° N, 103.8636° W |
| ZIP code | 57799 |
| Census code (GEOID) | 4644032 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Mountain Plains
- Spearfish2.9 mi NE
- North Spearfish3.6 mi NW
- Central City8.2 mi SE
- St. Onge8.9 mi NE
- Deadwood9.0 mi SE
- Lead9.2 mi SE
- Crook City11.0 mi E
- Whitewood11.1 mi E
- Beulah, WY12.1 mi NW
- Belle Fourche13.6 mi N
- Boulder Canyon13.7 mi E
- Fruitdale16.2 mi NE
Straight-line distance between town centers.
Frequently asked questions about Mountain Plains
What county is Mountain Plains in?
Mountain Plains is in Lawrence County, South Dakota.
What is the population of Mountain Plains, SD?
327 people lived in Mountain Plains at the 2020 Census.
What is the ZIP code of Mountain Plains, SD?
The ZIP code of Mountain Plains is 57799.
What is the elevation of Mountain Plains?
4,193 feet (1,278 m) above sea level.
What towns are near Mountain Plains?
Spearfish (2.9 mi), North Spearfish (3.6 mi), Central City (8.2 mi), St. Onge (8.9 mi), Deadwood (9.0 mi).
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