Iroquois is a city on the border of Beadle and Kingsbury counties in South Dakota, United States. The population was 292 at the 2020 census. The school building (K–12) is located in Kingsbury County, while the school parking lot is located in Beadle County. Highway 14 runs directly through Iroquois.

Official town website ↗

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

Town numbers

ZIP code57353

Area code605

Living in Iroquois

Work & commute in Iroquois

Full picture →

Most working residents leave Iroquois for work: only 3% work in town. The top destinations are De Smet (28%), Huron (14%) and Sioux Falls (8%). Half commute less than 21 miles.

De Smet

28%

Huron

14%

Sioux Falls

Howard

3%Work in townlive and work in Iroquois 21 miWhere do people commute?the commute map 78Jobs based herea commuter town

Census LEHD 2023 · ACSWork & commute in Iroquois →

Health in Iroquois

Compared with South Dakota

1better than SD

of 26 measures CDC estimates. The other 25 are too close to call.

Conditions 1▲ 11 close Habits all close Care all close Mind all close

BetterToo close to callWorse

What stands out

10.4%Fewer older adults who have lost all their teethSD 12.7% · better

Care nearby

Avera De Smet Memorial Hospital - CahDe Smet · 14.3 mi · ER · rural critical access

Horizon Health - De Smet Medical and DentalDe Smet · 14.3 mi · sliding-scale fees

Primary careShortage · county-wide

DentalShortage · county-wide

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Iroquois · CMS · HRSAHealth in Iroquois →

Natural hazards in Iroquois

Low

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

🥶 Cold waves🌊 Inland flooding🌪️ Tornadoes

0Does Iroquois flood?no paid flood claims on record 6Disasters that paid out herefederal disasters sent FEMA money to Iroquois MapIroquois vs. its neighborsnearby towns shaded by rating

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Iroquois →

Climate in Iroquois

Full climate →

Iroquois has cold, snowy winters and warm summers. A typical July afternoon reaches 85°, a January night drops to 5°, and about 39 inches of snow falls in a normal winter.

28° / 9°Winter

57° / 34°Spring

82° / 59°Summer

59° / 36°Fall

How much snow does Iroquois get?About 39 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?+1.1° vs. the 20th century.Then & now →

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

Schools in Iroquois

All Iroquois schools →

School Grade D

The public schools Iroquois’s kids attend trail 95% of South Dakota’s districts on state tests. Among towns with similar incomes, they rank near the bottom.

DistrictIroquois School District 02-3Schools3

Iroquois Elementary - 04 C-Elementary · Grades PK–5 · 114 students Iroquois Middle School - 02 DMiddle · Grades 6–8 · 48 students Iroquois High School - 01 B-High · Grades 9–12 · 45 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.