City · South Dakota
Iroquois, South Dakota
Iroquois, city, mostly in Kingsbury County (78.8% of its 2020 residents), with a part in Beadle County, South Dakota. Iroquois had 294 residents on July 1, 2025 by the Census Bureau's estimate, down 1.0% since 2020; the 2020 Census counted 292 and the ACS 2020-2024 5-year estimates put it at 389 (±106). GEOID 4632020.
Residents, July 2025 estimate
294
Census Bureau estimate (no margin published)
2020 Census count: 292 · ACS 2020-2024: 389 ±106
Median household income
$59,926
±$19,291 (90% margin)
South Dakota: $75,081
Median home value
$156,300
±$24,644 (90% margin)
South Dakota: $257,400
Median gross rent
$504
±$100 (90% margin)
South Dakota: $946
Where is Iroquois and what county is it in?
Iroquois is a city mostly in Kingsbury County (78.8% of its 2020 residents), with a part in Beadle County, South Dakota. It covers 0.6 square miles of land, 470 residents per square mile in 2020.
| County | 2020 residents | Share |
|---|---|---|
| Kingsbury County | 230 | 78.8% |
| Beadle County | 62 | 21.2% |
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Iroquois, and is it growing?
The Census Bureau estimates that 294 people lived in Iroquois on July 1, 2025, down 1.0% since 2020, while South Dakota grew 5.5%. The 2020 Census counted 292 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 389 (±106).
| Measure | Iroquois | Kingsbury County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 389 ±106 | 5,244 | no clear change |
| Households | 164 ±46 | 2,112 | no clear change |
| Average household size | 2.37 ±0.37 | 2.42 | no clear change |
| Housing units | 187 ±46 | 2,663 | no clear change |
Iroquois's population since 2000
From 278 in 2000 to 294 in 2025: up 5.8%. The 2000, 2010 and 2020 figures are census counts, each for Iroquois as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Iroquois?
The median resident of Iroquois is 30.8 years old; 25.4% are under 18 and 11.6% are 65 or older. The largest group is non-Hispanic white residents at 90.0%, then non-Hispanic American Indian and Alaska Native residents at 5.4%.
| Measure | Iroquois | Kingsbury County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 30.8 ±17.0 | 42.1 | no clear change |
| Under 18 years | 25.4% ±7.9 pts | 25.1% | – |
| 65 years and over | 11.6% ±5.8 pts | 23.1% | – |
| Male | 58.9% ±6.5 pts | 50.9% | – |
| Hispanic or Latino (any race) | 0.0% ±6.2 pts | 2.9% | – |
| White alone, not Hispanic | 90.0% ±6.8 pts | 91.3% | −9.7 pts |
| Black or African American alone, not Hispanic | 0.0% ±6.2 pts | 0.0% | – |
| Asian alone, not Hispanic | 0.8% ±1.0 pts | 0.4% | – |
| American Indian and Alaska Native alone, not Hispanic | 5.4% ±6.2 pts | 0.9% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±6.2 pts | 0.0% | – |
| Two or more races, not Hispanic | 3.9% ±3.5 pts | 4.1% | – |
| Some other race alone, not Hispanic | 0.0% ±6.2 pts | 0.4% | – |
| Born outside the United States | 1.3% ±1.2 pts | 1.0% | – |
| Speak a language other than English at home (age 5+) | 3.2% ±2.5 pts | 2.8% | – |
| Civilian veterans (age 18+) | 5.9% ±3.2 pts | 6.7% | – |
| With a disability | 11.8% ±5.0 pts | 10.8% | – |
| No health insurance coverage | 5.4% ±4.2 pts | 5.3% | – |
| High school graduate or higher (age 25+) | 89.8% ±5.5 pts | 92.7% | – |
| Bachelor's degree or higher (age 25+) | 19.1% ±9.5 pts | 23.1% | no clear change |
| Graduate or professional degree (age 25+) | 7.2% ±4.7 pts | 5.4% | – |
| Lived in the same house a year earlier | 92.5% ±4.7 pts | 93.0% | – |
| Moved from another state in the past year | 0.5% ±0.9 pts | 0.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Iroquois earn?
Half of Iroquois's 164 households earn less than $59,926 a year (±$19,291), against $74,000 in Kingsbury County and $75,081 in South Dakota. In 2015-2019 it was $67,560 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Iroquois | Kingsbury County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $59,926 ±$19,291 | $74,000 | no clear change |
| Mean household income | $74,202 ±$11,753 | $88,285 | – |
| Per capita income | $31,868 ±$4,560 | $37,027 | no clear change |
| People below the poverty line | 2.3% ±2.5 pts | 10.6% | – |
| Children under 18 below the poverty line | 0.0% ±22.1 pts | 11.9% | – |
| Households receiving SNAP | 0.0% ±14.1 pts | 3.9% | – |
| Households with a computer | 92.7% ±6.9 pts | 94.5% | – |
| Households with a broadband subscription | 93.3% ±6.5 pts | 89.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Iroquois?
Owners occupy 79.9% of Iroquois's occupied homes and renters 20.1%. The median owner-occupied home is valued at $156,300 by its owner (±$24,644). The median renter pays $504 a month including utilities.
| Measure | Iroquois | Kingsbury County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $156,300 ±$24,644 | $169,500 | no clear change |
| Median gross rent | $504 ±$100 | $685 | no clear change |
| Renters paying 35% or more of income on rent | 3.4% ±7.3 pts | 36.2% | – |
| Median monthly owner costs, with a mortgage | $1,176 ±$117 | $1,448 | – |
| Owner-occupied homes | 79.9% ±10.6 pts | 82.1% | no clear change |
| Renter-occupied homes | 20.1% ±10.6 pts | 17.9% | – |
| Housing units | 187 ±46 | 2,663 | no clear change |
| Homeowner vacancy rate | 0.8% ±1.5 pts | 0.7% | – |
| Rental vacancy rate | 0.0% ±45.3 pts | 2.6% | – |
| Single-family detached homes | 81.3% ±9.6 pts | 84.1% | – |
| Mobile homes | 6.4% ±4.7 pts | 6.4% | – |
| Built 2020 or later | 0.0% ±12.5 pts | 1.6% | – |
| Built 2010 to 2019 | 13.4% ±8.7 pts | 7.4% | – |
| Built 1939 or earlier | 29.4% ±11.6 pts | 32.2% | – |
| Households with no vehicle | 4.3% ±6.0 pts | 4.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Iroquois building?
Builders took permits for 0 new housing units in Iroquois in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 5.7 across South Dakota.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Iroquois work and get to work?
73.8% of Iroquois's workers drive alone. The average trip to work takes 24.0 minutes.
| Measure | Iroquois | Kingsbury County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 79.0% ±6.1 pts | 64.3% | – |
| Unemployment rate | 0.8% ±1.5 pts | 1.0% | – |
| Drove alone to work | 73.8% ±10.7 pts | 79.7% | – |
| Carpooled | 14.0% ±7.2 pts | 6.9% | – |
| Public transportation | 0.0% ±10.3 pts | 0.0% | – |
| Walked | 7.4% ±4.6 pts | 3.6% | – |
| Worked from home | 1.7% ±2.6 pts | 8.5% | – |
| Mean travel time to work | 24.0 min ±4.4 | 20.8 min | +10.0 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Iroquois?
No census tract lies mostly in Iroquois; 2 tracts reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9582Kingsbury County | 2,110 | $72,375 |
| Tract 9566Beadle County | 1,973 | $76,458 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Iroquois) · Census block assignment files
How does Iroquois compare with other places in South Dakota?
By the Census Bureau's July 2025 estimates, Iroquois is the 15,210th-most populous of the 19,476 U.S. incorporated places that have one and the 154th-most populous of 310 in South Dakota.
Iroquois is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 154th | 310 |
Iroquois's figures with every place in South Dakota (CSV)
Every place in South Dakota, sortable · Compare Iroquois with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Iroquois?
23 of the 57 figures for Iroquois on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Iroquois are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Iroquois.