Ingalls House is a historic house museum at 210 3rd Street Southwest in De Smet, South Dakota. The 3rd street house was moved into on Christmas Eve 1887.

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5 on the National Register · #31 in SDHistoric places →

Know De Smet

The town at a glance, and the guide to how things work

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About De Smet

Town in South Dakota, United States

1880Established

1,056Population

1.2 sq miArea

1,726 ftElevation

De Smet is a city in and the county seat of Kingsbury County, South Dakota, United States. The population was 1,056 at the 2020 census.

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From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Town numbers

ZIP code57231

Area code605

Living in De Smet

Work & commute in De Smet

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About one in 3 of De Smet’s working residents works in town. The top destinations are Sioux Falls (9%), Huron (7%) and De Smet (5%). Half commute less than 27 miles.

Sioux Falls

Huron

De Smet

Brookings

31%Work in townlive and work in De Smet 27 miWhere do people commute?the commute map 654Jobs based herebalanced

Census LEHD 2023 · ACSWork & commute in De Smet →

Health in De Smet

Compared with South Dakota

2better than SD·4worse

of 26 measures CDC estimates. The other 20 are too close to call.

Conditions 4▼ 8 close Habits all close Care 2▲ 5 close Mind all close

BetterToo close to callWorse

What stands out

81.4%More adults treating high blood pressureSD 75.9% · better 88%More adults getting cholesterol checkedSD 84.8% · better 12.6%More adults who have had cancerSD 9.2% · worse

Care nearby

Avera De Smet Memorial Hospital - CahDe Smet · 0.6 mi · ER · rural critical access

Horizon Health - De Smet Medical and DentalDe Smet · 0.6 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 De Smet · CMS · HRSAHealth in De Smet →

Natural hazards in De Smet

Low

Expected storm and flood damage is higher than in 30% of U.S. communities.

🥶 Cold waves🌊 Inland flooding🌪️ Tornadoes

0Does De Smet flood?no paid flood claims on record NoneDisasters that paid out hereof 22 declared for Kingsbury County

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in De Smet →

Climate in De Smet

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De Smet has cold, snowy winters and pleasant summers. A typical July afternoon reaches 83°, a January night drops to 5°, and about 41 inches of snow falls in a normal winter.

27° / 8°Winter

55° / 33°Spring

80° / 58°Summer

58° / 36°Fall

How much snow does De Smet get?About 41 inches a winter.Rain & snow →When is the first frost?Around Oct 4, with the last in spring around May 5.Frost dates →Is it warmer than it used to be?+1.2° vs. the 20th century.Then & now →

NOAA U.S. Climate Normals, 1991–2020Climate in De Smet →

Schools in De Smet

All De Smet schools →

C⁻

School Grade C-

The public schools De Smet’s kids attend trail 82% of South Dakota’s districts on state tests. Among towns with similar incomes, they rank near the bottom.

DistrictDe Smet School District 38-2Schools3

Laura Ingalls Wilder Elementary - 02 BElementary · Grades PK–5 · 176 students De Smet Middle School - 03 C-Middle · Grades 6–8 · 91 students De Smet High School - 01 CHigh · Grades 9–12 · 95 students

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results, graded within SD. Ratings are from neighbors.