Town guide
Hamilton
A township of 42 people in Marshall 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 Hamilton album
0 of 12 shotsNeighbors document Hamilton together
Town numbers
ZIP codeSign in to add
Area codeSign in to add
Living in Hamilton
Health in Hamilton
Compared with South Dakota
5better than SD·7worse
of 26 measures CDC estimates. The other 14 are too close to call.
BetterToo close to callWorse
What stands out
Care nearby
Marshall County Healthcare Center - CahBritton · 10.8 mi · ER · rural critical access
Horizon Health - AberdeenAberdeen · 46.3 mi · sliding-scale fees
Primary careShortage · county-wide
DentalShortage · county-wide
Mental healthShortage · county-wide
CDC PLACES 2025 · modeled estimates for adults · ZIP codes 57247, 57430 · CMS · HRSAHealth in Hamilton →
Natural hazards in Hamilton
Low
Expected storm and flood damage is higher than in 22% of U.S. communities.
🥶 Cold waves🌊 Inland flooding🧊 Hail
FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Hamilton →
Climate in Hamilton
Full climate →Hamilton has cold, snowy winters and pleasant summers. A typical July afternoon reaches 80°, a January night drops to 3°, and about 48 inches of snow falls in a normal winter.
22° / 6°Winter
51° / 31°Spring
78° / 57°Summer
54° / 35°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Hamilton →
Libraries near Hamilton
See all →Nearest: Britton Public LibraryBritton · 11.1 miles · 45 hrs a week
Where Hamilton is
Explore map →Imported town boundary
South Dakota · SD · Marshall CountyTown boundary on OpenStreetMap →
Around town
Explore map →Bordering towns
How things work in Hamilton
All explainers →No one has written Hamilton’s explainers yetKnow how one of these works here? Each explainer earns +10 karma.