Census-designated place · South Dakota
Enemy Swim, South Dakota
Enemy Swim, census-designated place, in Day County, South Dakota. Enemy Swim had 310 residents in the 2020 Census, a full count; the ACS 2020-2024 5-year estimates put it at 301 (±100). GEOID 4619556.
Residents, 2020 Census
310
Census count or controlled total
ACS 2020-2024 estimate: 301 ±100
Median household income
$30,357
±$11,537 (90% margin)
South Dakota: $75,081
Median home value
$85,800
±$13,291 (90% margin)
South Dakota: $257,400
Median gross rent
$433
±$394 (90% margin)
South Dakota: $946
Where is Enemy Swim and what county is it in?
Enemy Swim is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Day County, South Dakota. It covers 0.9 square miles of land, 332 residents per square mile in 2020.
Enemy Swim lies entirely within Waubay Township, a township with its own local government (2020 census blocks).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Enemy Swim, and is it growing?
The 2020 Census counted 310 residents in Enemy Swim, a full count rather than a sample. The 2020-2024 American Community Survey, a sample, estimates 301 (±100).
The Census Bureau publishes yearly population estimates for incorporated places only; Enemy Swim is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | Enemy Swim | Day County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 301 ±100 | 5,437 | – |
| Households | 84 ±36 | 2,371 | – |
| Average household size | 3.37 ±0.90 | 2.24 | – |
| Housing units | 245 ±47 | 3,440 | – |
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 Enemy Swim?
The median resident of Enemy Swim is 20.3 years old; 46.5% are under 18 and 20.3% are 65 or older. The largest group is non-Hispanic American Indian and Alaska Native residents at 84.1%, then non-Hispanic white residents at 9.3%.
| Measure | Enemy Swim | Day County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 20.3 ±10.9 | 44.8 | – |
| Under 18 years | 46.5% ±10.3 pts | 22.4% | – |
| 65 years and over | 20.3% ±10.3 pts | 26.7% | – |
| Male | 42.2% ±16.7 pts | 49.9% | – |
| Hispanic or Latino (any race) | 0.0% ±8.0 pts | 2.8% | – |
| White alone, not Hispanic | 9.3% ±7.5 pts | 83.0% | – |
| Black or African American alone, not Hispanic | 0.7% ±2.9 pts | 0.0% | – |
| Asian alone, not Hispanic | 1.0% ±2.6 pts | 0.1% | – |
| American Indian and Alaska Native alone, not Hispanic | 84.1% ±8.4 pts | 9.8% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±8.0 pts | 0.0% | – |
| Two or more races, not Hispanic | 5.0% ±5.2 pts | 4.2% | – |
| Some other race alone, not Hispanic | 0.0% ±8.0 pts | 0.1% | – |
| Born outside the United States | 2.0% ±2.3 pts | 1.7% | – |
| Speak a language other than English at home (age 5+) | 4.9% ±7.4 pts | 3.9% | – |
| Civilian veterans (age 18+) | 7.5% ±7.8 pts | 8.6% | – |
| With a disability | 12.3% ±6.6 pts | 13.2% | – |
| No health insurance coverage | 14.6% ±8.7 pts | 8.5% | – |
| High school graduate or higher (age 25+) | 66.4% ±16.7 pts | 93.4% | – |
| Bachelor's degree or higher (age 25+) | 17.9% ±14.6 pts | 22.0% | – |
| Graduate or professional degree (age 25+) | 15.7% ±16.2 pts | 6.1% | – |
| Lived in the same house a year earlier | 88.4% ±10.3 pts | 86.2% | – |
| Moved from another state in the past year | 0.0% ±8.0 pts | 3.4% | – |
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 Enemy Swim earn?
Half of Enemy Swim's 84 households earn less than $30,357 a year (±$11,537), against $66,033 in Day County and $75,081 in South Dakota. 69.4% of residents live below the poverty line.
| Measure | Enemy Swim | Day County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $30,357 ±$11,537 | $66,033 | – |
| Mean household income | $34,801 ±$13,852 | $91,552 | – |
| Per capita income | $10,327 ±$4,416 | $39,593 | – |
| People below the poverty line | 69.4% ±16.5 pts | 14.8% | – |
| Children under 18 below the poverty line | 92.1% ±10.5 pts | 24.5% | – |
| Households receiving SNAP | 56.0% ±21.9 pts | 7.1% | – |
| Households with a computer | 90.5% ±16.2 pts | 87.3% | – |
| Households with a broadband subscription | 84.5% ±18.6 pts | 83.8% | – |
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 Enemy Swim?
Owners occupy 54.8% of Enemy Swim's occupied homes and renters 45.2%. The median owner-occupied home is valued at $85,800 by its owner (±$13,291).
| Measure | Enemy Swim | Day County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $85,800 ±$13,291 | $173,600 | – |
| Median gross rent | $433 ±$394 | $660 | – |
| Renters paying 35% or more of income on rent | 18.4% ±28.8 pts | 22.6% | – |
| Owner-occupied homes | 54.8% ±20.0 pts | 74.6% | – |
| Renter-occupied homes | 45.2% ±20.0 pts | 25.4% | – |
| Housing units | 245 ±47 | 3,440 | – |
| Homeowner vacancy rate | 0.0% ±38.3 pts | 0.3% | – |
| Rental vacancy rate | 0.0% ±42.2 pts | 2.6% | – |
| Single-family detached homes | 89.8% ±7.9 pts | 85.1% | – |
| Mobile homes | 7.8% ±6.4 pts | 4.3% | – |
| Built 2020 or later | 0.0% ±9.7 pts | 0.7% | – |
| Built 2010 to 2019 | 22.0% ±9.1 pts | 9.2% | – |
| Built 1939 or earlier | 10.2% ±6.7 pts | 27.7% | – |
| Households with no vehicle | 0.0% ±25.3 pts | 6.0% | – |
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 do people in Enemy Swim work and get to work?
63.0% of Enemy Swim's workers drive alone. The average trip to work takes 20.0 minutes.
| Measure | Enemy Swim | Day County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 32.6% ±13.9 pts | 57.5% | – |
| Unemployment rate | 34.3% ±26.1 pts | 2.1% | – |
| Drove alone to work | 63.0% ±37.9 pts | 76.3% | – |
| Carpooled | 0.0% ±38.3 pts | 7.4% | – |
| Public transportation | 0.0% ±38.3 pts | 0.7% | – |
| Walked | 23.9% ±26.6 pts | 3.2% | – |
| Worked from home | 13.0% ±20.1 pts | 12.0% | – |
| Mean travel time to work | 20.0 min ±12.3 | 22.3 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 Enemy Swim?
No census tract lies mostly in Enemy Swim; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9529Day County | 1,872 | $65,750 |
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 Enemy Swim) · Census block assignment files
How does Enemy Swim compare with other places in South Dakota?
Enemy Swim 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.
Enemy Swim's figures with every place in South Dakota (CSV)
Every place in South Dakota, sortable · Compare Enemy Swim 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 Enemy Swim?
26 of the 56 figures for Enemy Swim 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 Enemy Swim 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' school search.