Town guide
Rainbow
A township of 27 people in Perkins County, South Dakota
From your neighbors
What’s happening
Weather
Forecast →Coming up
Upcoming events
Nothing on the calendar yet
Add an event →Put the next local happening — a market, a meeting, a concert — on the map.
Around town
All news →Local news
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Headlines via Google News · Articles belong to their publishers.
The Rainbow album
0 of 12 shotsNeighbors document Rainbow together
Outdoors in Rainbow
Parks & trails →Conserved land0%4 of 22,845 acres
Trails9.8 mi0.3 mi per sq mi
Parks & preserves1named on the map
Know a trail or park that’s missing? Anyone can add it to OpenStreetMap, and it shows up here on the next refresh.
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
Town numbers
ZIP codeSign in to add
Area codeSign in to add
Living in Rainbow
Health in Rainbow
Compared with South Dakota
2better than SD·5worse
of 26 measures CDC estimates. The other 19 are too close to call.
BetterToo close to callWorse
What stands out
Care nearby
West River Regional Medical CenterHettinger · 36.1 mi · ER · rural critical access
Horizon Health - BisonBison · 3 mi · sliding-scale fees
Primary careShortage · county-wide
DentalShortage · county-wide
Mental healthShortage · county-wide
CDC PLACES 2025 · modeled estimates for adults · ZIP code 57620 · CMS · HRSAHealth in Rainbow →
Natural hazards in Rainbow
Moderate
Expected storm and flood damage is higher than in 54% of U.S. communities.
🥶 Cold waves🌊 Inland flooding🔥 Wildfire
FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Rainbow →
Climate in Rainbow
Full climate →Rainbow has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 85°, a January night drops to 7°, and about 40 inches of snow falls in a normal winter.
30° / 9°Winter
55° / 31°Spring
82° / 54°Summer
58° / 32°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Rainbow →
Libraries near Rainbow
See all →Nearest: Bison Public LibraryBison · 3.2 miles · 20 hrs a week
Where Rainbow is
Explore map →Imported town boundary
South Dakota · SD · Perkins CountyTown boundary on OpenStreetMap →
Around town
Explore map →Bordering towns
How things work in Rainbow
All explainers →No one has written Rainbow’s explainers yetKnow how one of these works here? Each explainer earns +10 karma.