Town guide
Agar
A town of 68 people in 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
Loading local headlines…
Headlines via Google News · Articles belong to their publishers.
The Agar album
0 of 12 shotsNeighbors document Agar together
About Agar
Town in South Dakota, United States68Population
0.2 sq miArea
1,850 ftElevation
Agar (; AY-gar) is a small town in Sully County, South Dakota, United States. As of the 2020 census, Agar had a population of 68. Agar is a farm/ranch service center.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
Town numbers
ZIP code57520
Area code605
Living in Agar
Health in Agar
Compared with South Dakota
4better than SD·4worse
of 26 measures CDC estimates. The other 18 are too close to call.
BetterToo close to callWorse
What stands out
Care nearby
Avera Missouri River Health CenterGettysburg · 20.7 mi · ER · rural critical access
Access Health - OnidaOnida · 9.3 mi · sliding-scale fees
Primary careShortage · county-wide
DentalNo shortage
Mental healthShortage · county-wide
CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Agar · CMS · HRSAHealth in Agar →
Natural hazards in Agar
High
Expected storm and flood damage is higher than in 67% of U.S. communities.
🌊 Inland flooding🥶 Cold waves🔥 Wildfire
FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Agar →
Climate in Agar
Full climate →Agar has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 86°, a January night drops to 6°, and about 49 inches of snow falls in a normal winter.
29° / 9°Winter
56° / 32°Spring
83° / 57°Summer
59° / 34°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Agar →
Libraries near Agar
See all →Nearest: Sully Area LibraryOnida · 9.5 miles · 16 hrs a week
Famous people close to Agar
See all 16 →
Where Agar is
Explore map →
Location map
South Dakota · SDTown boundary on OpenStreetMap →
How things work in Agar
All explainers →No one has written Agar’s explainers yetKnow how one of these works here? Each explainer earns +10 karma.