Erwin is a town in Kingsbury County, South Dakota, home to about 105 people across 0.5 square miles. Its ZIP code is 57233.
Mostly Erwin
We’re writing up Erwin’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Erwin well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)207 miles away |
|---|---|
| Closer regional airport | Watertown Regional Airport (ATY)32 miles away |
| Nearest city of 250,000+ | Minneapolis, MN206 miles away |
| Nearest city of 1 million+ | Chicago, IL523 miles away |
Straight-line distances from the center of Erwin; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Erwin had 40 residents in the 2020 census, down 31% since 2000.
It’s the 297th largest of 440 towns in South Dakota by population.
Kingsbury County grew from 9,866 residents in 1900 to 5,187 in 2020.
Kingsbury County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 82°F in summer, and winter lows average 5°F. About 26.1 inches of rain and melted snow fall in a typical year, with about 41 inches of snow.
Source: NOAA 1991–2020 climate normals, De Smet, SD weather station (10 miles away).
1,254 jobs at 188 businesses in Kingsbury County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Buying or selling around Erwin? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.