De Smet is a city in Kingsbury County, South Dakota, home to about 943 people across 1.2 square miles. Its ZIP code is 57231.
Homes sold for a median of $125 per square foot in the three months ending August 2026, a buyer’s market.
Each card is that ZIP code’s whole market, including any part outside De Smet. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up De Smet’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)216 miles away |
|---|---|
| Closer regional airport | Watertown Regional Airport (ATY)42 miles away |
| Nearest city of 250,000+ | Minneapolis, MN215 miles away |
| Nearest city of 1 million+ | Chicago, IL528 miles away |
Straight-line distances from the center of De Smet; 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.
De Smet had 1,056 residents in the 2020 census, down 9% since 2000.
It’s the 86th 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 (about a mile 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).
12 doctors and other health care providers list an office in De Smet.
Nearest hospitals
Providers with an office here
| Primary care doctors | 2 |
|---|---|
| Dentists | 3 |
| Nurse practitioners and physician assistants | 3 |
| Physical and occupational therapists | 1 |
| Chiropractors | 3 |
| Pharmacies | 3 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (4 nearby)
Grocery stores (1 nearby)
Libraries (1 nearby)
Museums (3 nearby)
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by De Smet School District 38-2. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Laura Ingalls Wilder Elementary - 02De Smet | Pre-K–5 | 176 | Public | 0.3 mi |
| De Smet Middle School - 03De Smet | 6–8 | 91 | Public | 0.4 mi |
| De Smet High School - 01De Smet | 9–12 | 95 | Public | 0.4 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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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.