Town guide
Union
A township of 75 people in Brule 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
Headlines via Google News · Articles belong to their publishers.
The Union album
0 of 12 shotsNeighbors document Union together
Outdoors in Union
Parks & trails →Conserved land19%4,278 of 22,611 acres
Trails3.4 mi0.1 mi per sq mi
Parks & preserves0named 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 Union
Health in Union
Compared with South Dakota
11worse than SD
of 26 measures CDC estimates. The other 15 are too close to call.
BetterToo close to callWorse
What stands out
Care nearby
Sanford Chamberlain Medical CenterChamberlain · 12.8 mi · ER · rural critical access
Access Health - ChamberlainChamberlain · 13.1 mi · sliding-scale fees
Primary careShortage · county-wide
DentalShortage · county-wide
Mental healthShortage · county-wide
CDC PLACES 2025 · modeled estimates for adults · ZIP codes 57370, 57355 · CMS · HRSAHealth in Union →
Natural hazards in Union
High
Expected storm and flood damage is higher than in 65% of U.S. communities.
🥶 Cold waves🌊 Inland flooding🌵 Drought
FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Union →
Libraries near Union
See all →Nearest: Cozard Memorial LibraryChamberlain · 12.1 miles · 42 hrs a week
Where Union is
Explore map →Imported town boundary
South Dakota · SD · Brule CountyTown boundary on OpenStreetMap →
Around town
Explore map →Bordering towns
How things work in Union
All explainers →No one has written Union’s explainers yetKnow how one of these works here? Each explainer earns +10 karma.