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Corson County, SD: population growth, jobs and income

Corson County gained 4 residents between 2024 and 2025 (+0.1%).

Corson County had an estimated 3,781 residents in 2025, down 2.8% (110 fewer people) since 2020. That is slower than South Dakota as a whole (+5.3%), and the 58th fastest growth of 65 counties in South Dakota.

Data as of 2025 · updated

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In the Corson County report

One-time $99 PDF: everything on this page for Corson County, ranked against South Dakota and the U.S., plus these figures that are not on the free page:

  • Median gross rent$496/mo2020–24
  • Vacant homes, incl. seasonal and second homes17.0%2020–24
  • New homes permitted, last 12 months02025-10/2026-09
  • Rent growth, 5 yearsIn the report
  • Permits in 5+ unit buildingsIn the report
  • IRS income moving in (net AGI)In the report
  • Neighbouring-county comparison tableIn the report

What's inside: 5 pages

  1. 1 Summary, headline numbers and ranks (free preview)
  2. 2 Ranks and the neighbouring-county table
  3. 3 Migration, with IRS mover and income flows
  4. 4 Rent, vacant homes, permits and employers
  5. 5 Every source and the methods
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Headline numbers

What the numbers say

Net domestic migration was negative in 2025: 33 more people moved out to other U.S. counties than moved in.

Private employers had 289 paid employees in mid-March 2023, +37.6% since 2018 (County Business Patterns).

Unemployment averaged 4.1% in 2025, 1.3 points lower than in 2019 (before the pandemic).

Builders were authorized to start 0 new homes in 2025, or 0.0 per 1,000 residents.

Median household income was $46,406 in the 2020–24 American Community Survey, +26.4% since 2016–20.

Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 2,645th.

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Corson County population by year

Resident population, July 1 estimate (Census Bureau)
YearPopulationChange
20253,781+4
20243,777+1
20233,776−33
20223,809−37
20213,846−45
20203,891–

Census Bureau population estimates, July 1 of each year.

What drove the change in Corson County

Corson County lost 110 people since 2020; the biggest drag was domestic migration (−214).

Components of population change, people (Census Bureau)
Component20252020–25Share
Natural changebirths minus deaths+38+107
International migrationfrom and to other countries+0+0
Domestic migrationfrom and to other U.S. counties−33−214
Census adjustmentbalancing residual−1−3
Total change+4−110

Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.

How it ranks

MeasureIn South DakotaAmong U.S. counties
Population growth58th of 652,645th of 3,107
Net domestic migration per 1,000 residents57th of 652,822nd of 3,108
Private-sector job growth3rd of 6546th of 3,092
Median household income62nd of 652,886th of 3,107
Lowest unemployment rate61st of 651,711th of 3,108
New homes permitted per 1,000 residents61st of 622,823rd of 3,005

1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.

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The County Growth and Demographics Report for Corson County, SD as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.

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Neighbouring counties

Over 2020–25, Corson County's population change (−2.8%) was ahead of 1 of its 8 neighbouring counties and behind 7.

7 of its 8 neighbouring counties had a higher median household income than Corson County's $46,406 (2020–24).

Corson County, SD and its 8 neighbouring counties: public federal figures
CountyPopulation2025Population change2020–25Net domestic migration per 1,000 residents2025Homes permitted per 1,000 residents2025Median household income2020–24
Corson County, SD This county3,781−2.8%−8.70.0$46,406
Sioux County, ND3,667−5.4%−17.20.0$42,083
Dewey County, SD5,419+3.8%−5.00.0$54,104
Ziebach County, SD2,389−0.1%−0.4–$53,958
Emmons County, ND3,215−2.4%0.98.7$66,538
Campbell County, SD1,377−0.1%17.40.7$68,929
Walworth County, SD5,217−1.4%−5.91.3$65,026
Perkins County, SD2,853+0.8%7.70.0$66,908
Adams County, ND2,275+3.7%27.70.4$62,500

Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.

All 66 South Dakota counties · Every state

Questions

Is Corson County growing?

No. Its population fell 2.8% between 2020 and 2025, about 110 fewer people (Census Bureau population estimates). South Dakota as a whole changed +5.3% over the same years. That ranks 58th of 65 counties in South Dakota for population growth.

How many people moved to Corson County?

On net, none in 2025: about 33 more people moved out to other U.S. counties than moved in (Census Bureau net domestic migration estimate).

What is the unemployment rate in Corson County?

It averaged 4.1% in 2025 (BLS Local Area Unemployment Statistics, annual average).

What is the population of Corson County?

About 3,781 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.

How many jobs are in Corson County?

Private employers there had 289 paid employees in mid-March 2023, +37.6% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).

What Beacon CRE covers in South Dakota

Map, parcel and listing layers cover North and South Carolina only for now. This page and the other South Dakota county pages carry the public federal growth figures.

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Corson County data alerts

Email me when Corson County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.

We use your address only to email you when new data for Corson County is out: what changed, with a link to that county's report. No newsletter, no other sales emails. Delete it any time with the link in every email. We'll email you a link to confirm first; nothing starts until you click it. Privacy notice.

Sources and method

Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.

Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.