City · South Dakota
Arlington, South Dakota
Arlington, city, mostly in Kingsbury County (99.0% of its 2020 residents), with a part in Brookings County, South Dakota. Arlington had 926 residents on July 1, 2025 by the Census Bureau's estimate, up 0.7% since 2020; the 2020 Census counted 915 and the ACS 2020-2024 5-year estimates put it at 920 (±122). GEOID 4602180.
Residents, July 2025 estimate
926
Census Bureau estimate (no margin published)
2020 Census count: 915 · ACS 2020-2024: 920 ±122
Median household income
$71,296
±$10,085 (90% margin)
South Dakota: $75,081
Median home value
$144,300
±$15,639 (90% margin)
South Dakota: $257,400
Median gross rent
$810
±$174 (90% margin)
South Dakota: $946
Where is Arlington and what county is it in?
Arlington is a city mostly in Kingsbury County (99.0% of its 2020 residents), with a part in Brookings County, South Dakota. It covers 1.7 square miles of land, 533 residents per square mile in 2020.
| County | 2020 residents | Share |
|---|---|---|
| Kingsbury County | 906 | 99.0% |
| Brookings County | 9 | 1.0% |
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Arlington, and is it growing?
The Census Bureau estimates that 926 people lived in Arlington on July 1, 2025, up 0.7% since 2020, slower than South Dakota (+5.5%). The 2020 Census counted 915 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 920 (±122).
| Measure | Arlington | Kingsbury County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 920 ±122 | 5,244 | no clear change |
| Households | 392 ±49 | 2,112 | −91 |
| Average household size | 2.27 ±0.21 | 2.42 | no clear change |
| Housing units | 450 ±58 | 2,663 | no clear change |
Arlington's population since 2000
From 992 in 2000 to 926 in 2025: down 6.7%. The 2000, 2010 and 2020 figures are census counts, each for Arlington 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 Arlington?
The median resident of Arlington is 40.1 years old; 25.8% are under 18 and 22.5% are 65 or older. The largest group is non-Hispanic white residents at 84.6%, then Hispanic or Latino residents (of any race) at 9.6%.
| Measure | Arlington | Kingsbury County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 40.1 ±6.0 | 42.1 | no clear change |
| Under 18 years | 25.8% ±4.1 pts | 25.1% | – |
| 65 years and over | 22.5% ±6.0 pts | 23.1% | – |
| Male | 51.0% ±3.7 pts | 50.9% | – |
| Hispanic or Latino (any race) | 9.6% ±4.5 pts | 2.9% | no clear change |
| White alone, not Hispanic | 84.6% ±6.7 pts | 91.3% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±2.7 pts | 0.0% | – |
| Asian alone, not Hispanic | 2.0% ±1.9 pts | 0.4% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±2.7 pts | 0.9% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±2.7 pts | 0.0% | – |
| Two or more races, not Hispanic | 3.6% ±5.0 pts | 4.1% | – |
| Some other race alone, not Hispanic | 0.3% ±0.4 pts | 0.4% | – |
| Born outside the United States | 2.3% ±2.0 pts | 1.0% | – |
| Speak a language other than English at home (age 5+) | 5.0% ±2.7 pts | 2.8% | – |
| Civilian veterans (age 18+) | 6.6% ±3.5 pts | 6.7% | – |
| With a disability | 9.7% ±3.6 pts | 10.8% | – |
| No health insurance coverage | 9.7% ±3.9 pts | 5.3% | – |
| High school graduate or higher (age 25+) | 96.5% ±3.1 pts | 92.7% | – |
| Bachelor's degree or higher (age 25+) | 21.1% ±5.6 pts | 23.1% | no clear change |
| Graduate or professional degree (age 25+) | 6.6% ±3.3 pts | 5.4% | – |
| Lived in the same house a year earlier | 83.8% ±6.6 pts | 93.0% | – |
| Moved from another state in the past year | 1.2% ±1.6 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 Arlington earn?
Half of Arlington's 392 households earn less than $71,296 a year (±$10,085), against $74,000 in Kingsbury County and $75,081 in South Dakota. In 2015-2019 it was $66,150 in 2024 dollars; the margins of error cannot tell the two periods apart. 19.2% of residents live below the poverty line.
| Measure | Arlington | Kingsbury County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $71,296 ±$10,085 | $74,000 | no clear change |
| Mean household income | $77,806 ±$8,657 | $88,285 | – |
| Per capita income | $33,143 ±$3,390 | $37,027 | no clear change |
| People below the poverty line | 19.2% ±6.0 pts | 10.6% | no clear change |
| Children under 18 below the poverty line | 30.9% ±12.0 pts | 11.9% | – |
| Households receiving SNAP | 3.3% ±2.4 pts | 3.9% | – |
| Households with a computer | 94.1% ±3.5 pts | 94.5% | – |
| Households with a broadband subscription | 90.1% ±4.2 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 Arlington?
Owners occupy 70.2% of Arlington's occupied homes and renters 29.8%. The median owner-occupied home is valued at $144,300 by its owner (±$15,639). The median renter pays $810 a month including utilities, and 36.1% of renters pay 35% or more of their income on rent.
| Measure | Arlington | Kingsbury County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $144,300 ±$15,639 | $169,500 | no clear change |
| Median gross rent | $810 ±$174 | $685 | no clear change |
| Renters paying 35% or more of income on rent | 36.1% ±14.4 pts | 36.2% | – |
| Median monthly owner costs, with a mortgage | $1,184 ±$135 | $1,448 | – |
| Owner-occupied homes | 70.2% ±7.9 pts | 82.1% | no clear change |
| Renter-occupied homes | 29.8% ±7.9 pts | 17.9% | – |
| Housing units | 450 ±58 | 2,663 | no clear change |
| Homeowner vacancy rate | 0.7% ±1.5 pts | 0.7% | – |
| Rental vacancy rate | 7.9% ±11.5 pts | 2.6% | – |
| Single-family detached homes | 78.9% ±6.4 pts | 84.1% | – |
| Mobile homes | 5.6% ±3.8 pts | 6.4% | – |
| Built 2020 or later | 2.2% ±2.5 pts | 1.6% | – |
| Built 2010 to 2019 | 4.7% ±3.2 pts | 7.4% | – |
| Built 1939 or earlier | 18.2% ±6.1 pts | 32.2% | – |
| Households with no vehicle | 5.6% ±4.2 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 Arlington building?
Builders took permits for 0 new housing units in Arlington 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 Arlington work and get to work?
79.1% of Arlington's workers drive alone. The average trip to work takes 27.7 minutes.
| Measure | Arlington | Kingsbury County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 71.2% ±6.4 pts | 64.3% | – |
| Unemployment rate | 1.4% ±1.6 pts | 1.0% | – |
| Drove alone to work | 79.1% ±7.1 pts | 79.7% | – |
| Carpooled | 12.9% ±6.5 pts | 6.9% | – |
| Public transportation | 0.0% ±5.0 pts | 0.0% | – |
| Walked | 4.3% ±3.3 pts | 3.6% | – |
| Worked from home | 3.3% ±3.6 pts | 8.5% | – |
| Mean travel time to work | 27.7 min ±6.1 | 20.8 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 Arlington?
No census tract lies mostly in Arlington; 2 tracts reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9581Kingsbury County | 3,134 | $74,779 |
| Tract 9587Brookings County | 5,441 | $82,885 |
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 Arlington) · Census block assignment files
How does Arlington compare with other places in South Dakota?
By the Census Bureau's July 2025 estimates, Arlington is the 10,602nd-most populous of the 19,476 U.S. incorporated places that have one and the 71st-most populous of 310 in South Dakota.
Arlington 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 | 71st | 310 |
Arlington's figures with every place in South Dakota (CSV)
Every place in South Dakota, sortable · Compare Arlington 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 Arlington?
19 of the 57 figures for Arlington 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 Arlington 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 Arlington.