Corson County, South Dakota: Florida Surge county. In 2024, voted R+12%. Republican peak: R+51 in 1924.
Key facts
- 2024 presidential margin
- R+12MIT Election Lab
- Political typology
- Florida SurgeAkashic typology
- Population
- 3,8062024 5-year
- Median household income
- $46,4062024 5-year
- White (non-Hispanic)
- 29.9%2024 5-year
- Black
- 0.0%2024 5-year
- Hispanic / Latino
- 0.5%2024 5-year
- Peak Democratic margin
- D+44 in 1912MIT Election Lab
- Peak Republican margin
- R+51 in 1924MIT Election Lab
- Most similar
- Jefferson County, IA · similarity 0.88
2024 results by precinct
2024 precinct map of Corson CountyPrecinct-level 2024 presidential results for Corson County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | No data |
| 1896 | No data |
| 1900 | No data |
| 1904 | No data |
| 1908 | No data |
| 1912 | +44.3% |
| 1916 | −11.6% |
| 1920 | −40.5% |
| 1924 | −50.7% |
| 1928 | −14.6% |
| 1932 | +41.8% |
| 1936 | +11.3% |
| 1940 | −12.5% |
| 1944 | −12.4% |
| 1948 | +0.0% |
| 1952 | −38.0% |
| 1956 | −11.3% |
| 1960 | −8.3% |
| 1964 | +12.4% |
| 1968 | −14.3% |
| 1972 | −17.1% |
| 1976 | +6.6% |
| 1980 | −38.3% |
| 1984 | −9.3% |
| 1988 | +0.8% |
| 1992 | −3.1% |
| 1996 | +0.5% |
| 2000 | +6.4% |
| 2004 | +14.6% |
| 2008 | +21.5% |
| 2012 | +11.1% |
| 2016 | −4.5% |
| 2020 | −1.9% |
| 2024 | −11.9% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 495 | 631 | 1,143 | ||
| R | 622 | 647 | 1,283 | ||
| R | 535 | 588 | 1,175 | ||
| D | 648 | 515 | 1,200 | ||
| D | 837 | 535 | 1,406 | ||
| D | 972 | 720 | 1,724 | ||
| D | 629 | 549 | 1,243 | ||
| D | 539 | 533 | 1,300 | ||
| R | 444 | 483 | 1,251 | ||
| D | 722 | 710 | 1,448 | ||
| R | 792 | 955 | 1,753 | ||
| R | 522 | 1,233 | 1,855 | ||
| D | 967 | 846 | 1,823 | ||
| R | 689 | 975 | 1,673 | ||
| R | 821 | 1,108 | 2,009 | ||
| D | 1,328 | 1,034 | 2,362 | ||
| R | 1,093 | 1,290 | 2,383 | ||
| R | 1,112 | 1,394 | 2,506 | ||
| R | 789 | 1,757 | 2,546 | ||
| O | 1,154 | 1,154 | 2,325 | ||
| R | 786 | 1,008 | 1,794 | ||
| R | 1,328 | 1,709 | 3,037 | ||
| D | 1,781 | 1,408 | 3,295 | ||
| D | 2,403 | 946 | 3,484 | ||
| R | 1,374 | 1,847 | 3,245 | ||
| R | 140 | 1,364 | 2,414 | ||
| R | 484 | 1,448 | 2,378 | ||
| R | 503 | 641 | 1,192 | ||
| O | 455 | 0 | 1,028 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
17.8%
Irish
5.1%
American
4.7%
English
1.1%
French
0.6%
Sample size too small to break out by ancestry reliably.
Multiple ancestry combinations reported; no single grouping above 1%.
Sample size too small to break out by ancestry reliably.
Sample size too small to break out by ancestry reliably.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 29.9 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$46,406
Corson County ranks in the bottom 10% of US counties.
Corson County$46,406
South Dakota$75,081
United States$80,734
Corson County ranks in the bottom 10% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
44.2%
Nearly half of children live in poverty.
Children under 1858.3%
Working age (18–64)37.7%
Seniors (65+)22.0%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
86.3%
speak English only
Other languages12.7%
Other Indo-European0.6%
Spanish0.4%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 45.9% of residents not counted as adherents by any reporting body.
Corson County's electorate is roughly split between Native American communities on the Standing Rock Reservation and non-Native ranching households, a tension that produces competitive local races even as federal contests have trended toward double-digit Republican margins.
The Democratic margin here once reached forty-four points in 1912. Between 2020 and 2024 the county moved ten points toward the Republican candidate; the 2024 margin was twelve points.
A population of 3,806, a 30% non-Hispanic-white share, and a median household income of $46,406 describe the county. The county's voting pattern over the last decade is most similar to that of Jefferson County and Ziebach County.
Most similar counties
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Corson County, South Dakota. Akashic. https://akashic.app/county/46031/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in South Dakota
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Frequently asked questions
How did Corson County, South Dakota vote in 2024?
In 2024, Corson County, South Dakota voted Republican by 11.9 points (R+12), carried by the Republican candidate. Out of 1,143 votes cast, 495 went Democratic and 631 went Republican.
What is Corson County, South Dakota's political typology?
Akashic places Corson County, South Dakota in the "Florida Surge" typology — Florida coastal and retiree counties that moved sharply Republican across the Trump era. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 10 times, Republican 17 times, and other 2 times.
When did Corson County, South Dakota last vote Democratic?
The most recent presidential election in which Corson County, South Dakota voted Democratic was 2012.
How many people live in Corson County, South Dakota?
Corson County, South Dakota has a population of 3,806 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Corson County, South Dakota?
Median household income in Corson County, South Dakota is $46,406 — below the national median of $80,734. The South Dakota state median is $75,081.
What is the political history of Corson County, South Dakota?
Akashic tracks 38 presidential elections in Corson County, South Dakota from 1876 to 2024. Of those, 10 went Democratic and 17 went Republican. The county's typology — "Florida Surge" — captures where that record, its demographics, and its recent swing place it among American communities.