Corson County, South Dakota Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 42nd-largest in South Dakota
The population of Corson County, South Dakota is 3,859 as of the 2023 American Community Survey, making it the 42nd-largest county in South Dakota. The median household income is $43,750, the median home value is $73,800, and the median age is 29.9.
The population of Corson County has declined 7.8% since 2010 (4,064 → 3,747), a -0.58% annualized rate.
3,859
Population
-0.58%
Annual growth
2
People / sq mi
$43,750
Median Income
$73,800
Median Home Value
Corson County covers 2,470 sq mi of land at 1.6 people per square mile.
About Corson County, SD
Corson County is a county in South Dakota with a population of 3,859. It ranks #42 among counties in South Dakota by population. The median age is 29.9, younger than the national median. The population is 49.4% male and 50.6% female.
The median household income in Corson County is $43,750, below the US median of $74,580. 35.2% of residents live below the federal poverty level. Home values sit at a median of $73,800, with monthly rent averaging $473. The homeownership rate of 60.5% is lower than the national rate of 64.8%.
Educational attainment in Corson County reflects 19.2% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 27.5% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 20.4 minutes each way.
Corson County Population History (2010-2024)
The county of Corson County had a population of 4,064 in 2010 and 3,747 in 2024, a -7.8% growth over 14 years. The peak was 4,206 in 2013. Average annual growth rate: -0.56%.
3,747
Population (2024)
4,064
Population (2010)
4,206
Peak (2013)
-0.56%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 4,064 |
| 2011 | 4,034 |
| 2012 | 4,067 |
| 2013 | 4,206 |
| 2014 | 4,170 |
| 2015 | 4,172 |
| 2016 | 4,098 |
| 2017 | 4,187 |
| 2018 | 4,137 |
| 2019 | 4,076 |
| 2020 | 3,888 |
| 2021 | 3,842 |
| 2022 | 3,797 |
| 2023 | 3,756 |
| 2024 | 3,747 |
Race & Ethnicity
| White | 30.1% |
| Black or African American | 0.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 69.4% |
| Two or More Races | 0.0% |
Age & Sex
29.9
Median Age
50.6%
Female
49.4%
Male
12.9%
Age 65+
Age Distribution
Children (under 15): 29.3% · Seniors (65+): 12.9%
Income & Poverty
| Median household income | $43,750$-28,671 vs state |
| Mean household income | $67,937 |
| Per-capita income | $20,743 |
| Poverty rate | 35.2%+27.8% vs state |
| Unemployment rate | 13.4% |
| Employment-to-population | 44.2% |
Top Industries by Employment
The largest employment sector in Corson County is agriculture, accounting for 27.1% of workers.
How residents commute
0.0%
Drive alone
2.7%
Carpool
63.7%
Public transit
27.5%
Work from home
20.4 min
Avg commute
Housing
$73,800$-163,000 vs state
Median home value
$473
Median rent
60.5%
Homeownership rate
1,360
Total housing units
81.8%
Occupied
18.2%
Vacant
39.5%
Renter-occupied
Social & access
81.2%
With health insurance
79.2%
With broadband internet
62.6%
Foreign-born
8.0%
Veterans (18+)
15.2%
With a disability
87.3%
Speak language other than English at home
Education
86.8%
High School+
19.2%
Bachelor's+
Largest cities in South Dakota
Other counties in South Dakota
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County rankings
Frequently Asked Questions
Corson County, South Dakota has a population of 3,859 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 42nd-largest county in South Dakota. Population density is 2 people per square mile.
The population of Corson County has declined 7.8% since 2010 (4,064 → 3,747), a -0.58% annualized rate.
The median household income in Corson County, South Dakota is $43,750, with mean (average) household income of $67,937 and per-capita income of $20,743. 35.2% of residents live below the federal poverty level.
In Corson County, the largest racial and ethnic groups are Hispanic or Latino (69.4%), White (30.1%), Black or African American (0.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Corson County, South Dakota is 29.9 years. Residents are 50.6% female and 49.4% male.
The median home value in Corson County is $73,800 and median monthly rent is $473. 60.5% of occupied housing units are owner-occupied. The county has 1,360 total housing units, 18.2% of which are vacant.
The largest employment sector in Corson County, South Dakota is agriculture, forestry, fishing, and mining, employing 27.1% of workers. The unemployment rate is 13.4%.
Sioux Falls is among the largest cities associated with Corson County, South Dakota, with a population of 197,642.
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Statewide data for South Dakota
Population, race, income, age, and trends across South Dakota
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.