Town guide
Portage
A township of 36 people in Brown 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 Portage album
0 of 12 shotsNeighbors document Portage together
Outdoors in Portage
Parks & trails →Conserved land56%12,779 of 22,710 acres
Trails8.9 mi0.3 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 Portage
Health in Portage
Compared with South Dakota
10better than SD·7worse
of 26 measures CDC estimates. The other 9 are too close to call.
BetterToo close to callWorse
What stands out
Care nearby
Marshall County Healthcare Center - CahBritton · 16.1 mi · ER · rural critical access
Family Healthcare Lamoure, North DakotaLamoure · 33.8 mi · sliding-scale fees
Primary careShortage · county-wide
DentalShortage · county-wide
Mental healthShortage · county-wide
CDC PLACES 2025 · modeled estimates for adults · ZIP code 57446 · CMS · HRSAHealth in Portage →
Natural hazards in Portage
Low
Expected storm and flood damage is higher than in 37% of U.S. communities.
🌊 Inland flooding🥶 Cold waves🧊 Hail
FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Portage →
Climate in Portage
Full climate →Portage has cold, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 82°, a January night drops to 2°, and about 45 inches of snow falls in a normal winter.
24° / 5°Winter
54° / 31°Spring
80° / 57°Summer
56° / 34°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Portage →
Libraries near Portage
See all →Nearest: Britton Public LibraryBritton · 15.8 miles · 45 hrs a week
Where Portage is
Explore map →Imported town boundary
South Dakota · SD · Brown CountyTown boundary on OpenStreetMap →
Around town
Explore map →Bordering towns
How things work in Portage
All explainers →No one has written Portage’s explainers yetKnow how one of these works here? Each explainer earns +10 karma.