Charles Mix County, South Dakota: Heartland Swing county. In 2024, voted R+43%. Democratic peak: D+58 in 1932.
Key facts
- 2024 presidential margin
- R+43MIT Election Lab
- Political typology
- Heartland SwingAkashic typology
- Population
- 9,2812024 5-year
- Median household income
- $64,0382024 5-year
- White (non-Hispanic)
- 63.9%2024 5-year
- Black
- 0.2%2024 5-year
- Hispanic / Latino
- 3.0%2024 5-year
- Peak Democratic margin
- D+58 in 1932MIT Election Lab
- Peak Republican margin
- R+45 in 1892MIT Election Lab
- Most similar
- McCook County, SD · similarity 0.98
2024 results by precinct
2024 precinct map of Charles Mix CountyPrecinct-level 2024 presidential results for Charles Mix 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 | −44.6% |
| 1896 | −8.0% |
| 1900 | −2.3% |
| 1904 | −34.6% |
| 1908 | −14.2% |
| 1912 | +45.8% |
| 1916 | −16.0% |
| 1920 | −17.8% |
| 1924 | −6.9% |
| 1928 | −0.8% |
| 1932 | +58.5% |
| 1936 | +35.0% |
| 1940 | +4.9% |
| 1944 | +10.9% |
| 1948 | +26.1% |
| 1952 | −8.6% |
| 1956 | +17.2% |
| 1960 | +5.9% |
| 1964 | +36.4% |
| 1968 | +5.9% |
| 1972 | +14.2% |
| 1976 | +18.5% |
| 1980 | −18.9% |
| 1984 | −17.1% |
| 1988 | +5.7% |
| 1992 | +1.7% |
| 1996 | +5.0% |
| 2000 | +25.3% |
| 2004 | −8.4% |
| 2008 | −7.6% |
| 2012 | −19.8% |
| 2016 | −42.1% |
| 2020 | −36.3% |
| 2024 | −42.9% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 1,000 | 2,551 | 3,615 | ||
| R | 1,177 | 2,552 | 3,783 | ||
| R | 935 | 2,382 | 3,433 | ||
| R | 1,483 | 2,230 | 3,764 | ||
| R | 1,807 | 2,109 | 3,978 | ||
| R | 2,155 | 2,556 | 4,798 | ||
| D | 2,205 | 1,300 | 3,579 | ||
| D | 1,913 | 1,711 | 4,035 | ||
| D | 1,639 | 1,570 | 4,099 | ||
| D | 2,205 | 1,966 | 4,184 | ||
| R | 1,879 | 2,660 | 4,563 | ||
| R | 1,741 | 2,608 | 4,599 | ||
| D | 2,593 | 1,779 | 4,394 | ||
| D | 2,691 | 2,020 | 4,721 | ||
| D | 2,369 | 2,093 | 4,675 | ||
| D | 3,488 | 1,625 | 5,113 | ||
| D | 2,754 | 2,446 | 5,200 | ||
| D | 3,117 | 2,202 | 5,319 | ||
| R | 2,790 | 3,316 | 6,106 | ||
| D | 3,086 | 1,800 | 4,935 | ||
| D | 2,701 | 2,171 | 4,872 | ||
| D | 3,303 | 2,993 | 6,296 | ||
| D | 4,628 | 2,209 | 6,912 | ||
| D | 5,399 | 1,397 | 6,846 | ||
| R | 3,039 | 3,087 | 6,140 | ||
| O | 1,306 | 1,680 | 5,382 | ||
| R | 1,305 | 2,021 | 4,028 | ||
| R | 1,450 | 2,011 | 3,514 | ||
| O | 1,625 | 0 | 3,545 | ||
| R | 1,391 | 1,863 | 3,334 | ||
| R | 823 | 1,765 | 2,722 | ||
| R | 1,058 | 1,108 | 2,197 | ||
| R | 594 | 698 | 1,303 | ||
| R | 115 | 516 | 899 | ||
| — | — | — | — | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
26.5%
American
7.6%
Irish
6.7%
English
3.2%
French
1.7%
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.
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: 36.0 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
$64,038
Charles Mix County ranks near the middle of US counties.
Charles Mix County$64,038
South Dakota$75,081
United States$80,734
Charles Mix County ranks near the middle 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
24.0%
Children face higher poverty than working-age adults.
Children under 1833.4%
Working age (18–64)19.9%
Seniors (65+)19.7%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
93.2%
speak English only
Other languages4.1%
Other Indo-European1.9%
Asian & Pacific Islander0.5%
Spanish0.4%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 31.6% of residents not counted as adherents by any reporting body.
Charles Mix sits along the Missouri River and includes the Yankton Sioux Reservation, giving it one of South Dakota's more demographically complex electorates despite its small population — yet Republican presidential margins have exceeded 40 points in recent cycles.
The Democratic margin here peaked at fifty-eight points in 1932. Between 2020 and 2024 the county moved seven points toward the Republican candidate; the 2024 margin was forty-three points.
A population of 9,281, a 64% non-Hispanic-white share, and a median household income of $64,038 describe the county. The county's voting pattern over the last decade is most similar to that of McCook County and Yancey 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.
Charles Mix County, South Dakota. Akashic. https://akashic.app/county/46023/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in South Dakota
More heartland swing counties
Frequently asked questions
How did Charles Mix County, South Dakota vote in 2024?
In 2024, Charles Mix County, South Dakota voted Republican by 42.9 points (R+43), carried by the Republican candidate. Out of 3,615 votes cast, 1,000 went Democratic and 2,551 went Republican.
What is Charles Mix County, South Dakota's political typology?
Akashic places Charles Mix County, South Dakota in the "Heartland Swing" typology — Industrial Midwest swing counties drifting steadily toward the Republican Party. 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 15 times, Republican 17 times, and other 2 times.
When did Charles Mix County, South Dakota last vote Democratic?
The most recent presidential election in which Charles Mix County, South Dakota voted Democratic was 2000.
How many people live in Charles Mix County, South Dakota?
Charles Mix County, South Dakota has a population of 9,281 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Charles Mix County, South Dakota?
Median household income in Charles Mix County, South Dakota is $64,038 — below the national median of $80,734. The South Dakota state median is $75,081.
What is the political history of Charles Mix County, South Dakota?
Akashic tracks 38 presidential elections in Charles Mix County, South Dakota from 1876 to 2024. Of those, 15 went Democratic and 17 went Republican. The county's typology — "Heartland Swing" — captures where that record, its demographics, and its recent swing place it among American communities.