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Mountain Plains, SD
Census-designated place in Lawrence County, South Dakota.
Population
350
Land area
1.6sq mi
People per sq mi
220
ZIP codes
0
Mountain Plains and its ZIP codes
Mountain Plains at a glance
- Mountain Plains is about 18 times as dense as South Dakota as a whole.
Local data for Mountain Plains, SD
Counts from official public data
Economy and federal money
Jobs, pay, income and spending are for Lawrence County. PPP loans are for Mountain Plains.
Unemployment rate
1.9%
Aug 2026, -0.3 pts in a year
Average annual pay
$50,959
13,691 jobs, 2025
Income per person
$78,616
BEA, 2024
Federal spending
$299M
FY 2026, $11,614 per person
Environment and hazard risk
Mountain Plains, SD, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: wildfire
Storm events since 1996
1,203
Countywide, mostly hail
Flood insurance policies
78
0.6% of homes, county
July high / Jan low
84° / 16°F
21.4 inches of rain a year
Hazards, floods and storm historyCheck a flood zone1 historic places
Health statistics
Share of adults in Mountain Plains, SD, CDC PLACES estimates
Obesity
35.2%
U.S. 33.3% +1.9 pts
Diabetes
13.9%
U.S. 12.1% +1.8 pts
Smoking
14.4%
U.S. 12.8% +1.6 pts
Uninsured (18-64)
6.2%
U.S. 11.1% -4.9 pts
Cities near Mountain Plains
| Name | Distance | Land area (sq mi) |
|---|---|---|
| SpearfishCity | 2.8 mi | 17.3 |
| North SpearfishCensus-designated place | 4 mi | 4.3 |
| Central CityCity | 8.2 mi | 0.2 |
| St. OngeCensus-designated place | 9 mi | 1.3 |
| DeadwoodCity | 9.1 mi | 4.9 |
| LeadCity | 9.2 mi | 2.1 |
| WhitewoodCity | 11 mi | 0.7 |
| Crook CityCensus-designated place | 11 mi | 0.9 |
| Beulah, WYCensus-designated place | 12 mi | 0.6 |
| Belle FourcheCity | 13 mi | 9 |
| Boulder CanyonCensus-designated place | 14 mi | 3.1 |
| FruitdaleTown | 16 mi | 0.3 |
| SturgisCity | 18 mi | 6.6 |
| NislandTown | 21 mi | 0.3 |
| Blucksberg MountainCensus-designated place | 21 mi | 0.7 |
| ValeCensus-designated place | 25 mi | 1.5 |
Frequently asked questions
- What county is Mountain Plains, SD in?
- Mountain Plains is in Lawrence County, South Dakota.
- What is the population of Mountain Plains, SD?
- About 350 people live in Mountain Plains, based on American Community Survey 5-year estimates.
- What cities are near Mountain Plains?
- Nearby places include Spearfish (2.8 mi), North Spearfish (4 mi), Central City (8.2 mi), St. Onge (9 mi), Deadwood (9.1 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023