City · South Dakota
Tyndall, South Dakota
Tyndall, city, in Bon Homme County, South Dakota. Tyndall had 1,117 residents on July 1, 2025 by the Census Bureau's estimate, up 5.8% since 2020; the 2020 Census counted 1,057 and the ACS 2020-2024 5-year estimates put it at 1,183 (±191). GEOID 4664860.
Residents, July 2025 estimate
1,117
Census Bureau estimate (no margin published)
2020 Census count: 1,057 · ACS 2020-2024: 1,183 ±191
Median household income
$50,481
±$10,594 (90% margin)
South Dakota: $75,081
Median home value
$101,500
±$9,886 (90% margin)
South Dakota: $257,400
Median gross rent
$753
±$351 (90% margin)
South Dakota: $946
Where is Tyndall and what county is it in?
Tyndall is a city in Bon Homme County, South Dakota. It covers 1.6 square miles of land, 670 residents per square mile in 2020.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Tyndall, and is it growing?
The Census Bureau estimates that 1,117 people lived in Tyndall on July 1, 2025, up 5.8% since 2020, in line with South Dakota (+5.5%). The 2020 Census counted 1,057 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 1,183 (±191).
| Measure | Tyndall | Bon Homme County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,183 ±191 | 7,044 | no clear change |
| Households | 499 ±66 | 2,418 | no clear change |
| Average household size | 2.21 ±0.30 | 2.28 | no clear change |
| Housing units | 601 ±70 | 2,842 | no clear change |
Tyndall's population since 2000
From 1,239 in 2000 to 1,117 in 2025: down 9.8%. The 2000, 2010 and 2020 figures are census counts, each for Tyndall 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 Tyndall?
The median resident of Tyndall is 53.1 years old; 20.5% are under 18 and 34.9% are 65 or older. The largest group is non-Hispanic white residents at 93.9%, then non-Hispanic residents of two or more races at 4.0%.
| Measure | Tyndall | Bon Homme County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 53.1 ±9.9 | 42.1 | +17.2 |
| Under 18 years | 20.5% ±5.0 pts | 18.6% | – |
| 65 years and over | 34.9% ±7.8 pts | 21.5% | – |
| Male | 50.9% ±4.1 pts | 60.0% | – |
| Hispanic or Latino (any race) | 0.5% ±1.3 pts | 2.4% | – |
| White alone, not Hispanic | 93.9% ±4.4 pts | 86.1% | no clear change |
| Black or African American alone, not Hispanic | 0.8% ±2.0 pts | 2.3% | – |
| Asian alone, not Hispanic | 0.1% ±0.3 pts | 0.1% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.7% ±0.8 pts | 5.6% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±2.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.0% ±3.2 pts | 3.1% | – |
| Some other race alone, not Hispanic | 0.0% ±2.1 pts | 0.4% | – |
| Born outside the United States | 0.1% ±0.3 pts | 0.8% | – |
| Speak a language other than English at home (age 5+) | 7.4% ±3.2 pts | 6.7% | – |
| Civilian veterans (age 18+) | 13.5% ±5.1 pts | 7.4% | – |
| With a disability | 20.0% ±5.7 pts | 14.5% | – |
| No health insurance coverage | 2.1% ±1.4 pts | 5.2% | – |
| High school graduate or higher (age 25+) | 89.5% ±3.6 pts | 90.6% | – |
| Bachelor's degree or higher (age 25+) | 27.9% ±8.3 pts | 19.6% | +14.1 pts |
| Graduate or professional degree (age 25+) | 9.2% ±4.2 pts | 6.4% | – |
| Lived in the same house a year earlier | 92.0% ±3.3 pts | 83.8% | – |
| Moved from another state in the past year | 1.0% ±1.2 pts | 1.5% | – |
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 Tyndall earn?
Half of Tyndall's 499 households earn less than $50,481 a year (±$10,594), against $64,435 in Bon Homme County and $75,081 in South Dakota. In 2015-2019 it was $52,818 in 2024 dollars; the margins of error cannot tell the two periods apart. 8.5% of residents live below the poverty line.
| Measure | Tyndall | Bon Homme County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $50,481 ±$10,594 | $64,435 | no clear change |
| Mean household income | $73,606 ±$16,372 | $82,310 | – |
| Per capita income | $32,323 ±$6,763 | $30,525 | no clear change |
| People below the poverty line | 8.5% ±4.7 pts | 10.6% | no clear change |
| Children under 18 below the poverty line | 8.6% ±11.8 pts | 18.4% | – |
| Households receiving SNAP | 2.8% ±3.9 pts | 6.3% | – |
| Households with a computer | 88.6% ±6.1 pts | 91.4% | – |
| Households with a broadband subscription | 80.8% ±7.7 pts | 85.2% | – |
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 Tyndall?
Owners occupy 85.6% of Tyndall's occupied homes and renters 14.4%. The median owner-occupied home is valued at $101,500 by its owner (±$9,886). The median renter pays $753 a month including utilities, and 43.5% of renters pay 35% or more of their income on rent.
| Measure | Tyndall | Bon Homme County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $101,500 ±$9,886 | $134,100 | no clear change |
| Median gross rent | $753 ±$351 | $646 | no clear change |
| Renters paying 35% or more of income on rent | 43.5% ±25.4 pts | 19.8% | +29.4 pts |
| Median monthly owner costs, with a mortgage | $1,186 ±$109 | $1,389 | – |
| Owner-occupied homes | 85.6% ±6.0 pts | 80.5% | +23.7 pts |
| Renter-occupied homes | 14.4% ±6.0 pts | 19.5% | – |
| Housing units | 601 ±70 | 2,842 | no clear change |
| Homeowner vacancy rate | 1.8% ±2.7 pts | 1.7% | – |
| Rental vacancy rate | 23.4% ±22.1 pts | 4.5% | – |
| Single-family detached homes | 82.5% ±6.4 pts | 86.1% | – |
| Mobile homes | 4.8% ±4.2 pts | 5.5% | – |
| Built 2020 or later | 0.0% ±4.1 pts | 0.7% | – |
| Built 2010 to 2019 | 1.8% ±1.7 pts | 7.7% | – |
| Built 1939 or earlier | 39.1% ±9.2 pts | 35.0% | – |
| Households with no vehicle | 5.2% ±4.1 pts | 4.2% | – |
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 Tyndall building?
Builders took permits for 8 new housing units in Tyndall in 2025 (8 in single-family houses), 7.2 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 Tyndall work and get to work?
85.6% of Tyndall's workers drive alone. The average trip to work takes 17.8 minutes.
| Measure | Tyndall | Bon Homme County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 56.9% ±6.3 pts | 48.2% | – |
| Unemployment rate | 3.1% ±3.5 pts | 2.2% | – |
| Drove alone to work | 85.6% ±6.6 pts | 73.0% | – |
| Carpooled | 11.4% ±6.4 pts | 13.9% | – |
| Public transportation | 0.0% ±4.6 pts | 0.3% | – |
| Walked | 0.6% ±0.9 pts | 3.4% | – |
| Worked from home | 1.3% ±1.4 pts | 7.4% | – |
| Mean travel time to work | 17.8 min ±2.4 | 19.3 min | no clear change |
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 Tyndall?
No census tract lies mostly in Tyndall; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9676Bon Homme County | 3,193 | $64,722 |
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 Tyndall) · Census block assignment files
How does Tyndall compare with other places in South Dakota?
By the Census Bureau's July 2025 estimates, Tyndall is the 9,847th-most populous of the 19,476 U.S. incorporated places that have one and the 61st-most populous of 310 in South Dakota.
Tyndall ranks 71st of 82 places in South Dakota with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 61st | 310 |
| Growth 2020-2025 (PEP) | 19th | 73 |
| Residents per square mile | 61st | 84 |
| Median household income | 71st | 82 |
| Per capita income | 65th | 83 |
| Median home value | 76th | 81 |
| Median gross rent | 49th | 72 |
| Poverty rate | 40th | 55 |
| Bachelor's degree or higher | 44th | 81 |
| Median age | 4th | 83 |
| Owner-occupied share | 10th | 84 |
| Travel time to work | 35th | 84 |
Tyndall's figures with every place in South Dakota (CSV)
Every place in South Dakota, sortable · Compare Tyndall 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 Tyndall?
22 of the 57 figures for Tyndall 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 Tyndall 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 Tyndall.