Yankton County, South Dakota: Farm Belt county. In 2024, voted R+26%. Democratic peak: D+48 in 1932.
Key facts
- 2024 presidential margin
- R+26MIT Election Lab
- Political typology
- Farm BeltAkashic typology
- Population
- 23,4142024 5-year
- Median household income
- $72,8212024 5-year
- White (non-Hispanic)
- 87.8%2024 5-year
- Black
- 1.6%2024 5-year
- Hispanic / Latino
- 5.9%2024 5-year
- Peak Democratic margin
- D+48 in 1932MIT Election Lab
- Peak Republican margin
- R+43 in 1892MIT Election Lab
- Most similar
- Codington County, SD · similarity 1.00
2024 results by precinct
Precinct
Margin—
Turnout—
Harris +50Trump +50
Hover precincts for detail. Real precinct boundaries forthcoming.
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 | −43.4% |
| 1896 | −3.4% |
| 1900 | −12.6% |
| 1904 | −41.4% |
| 1908 | −18.2% |
| 1912 | +44.0% |
| 1916 | −0.3% |
| 1920 | −34.1% |
| 1924 | −21.4% |
| 1928 | −2.2% |
| 1932 | +48.1% |
| 1936 | +22.1% |
| 1940 | −15.4% |
| 1944 | −16.8% |
| 1948 | +0.5% |
| 1952 | −36.8% |
| 1956 | −15.3% |
| 1960 | −14.1% |
| 1964 | +7.7% |
| 1968 | −17.5% |
| 1972 | −6.5% |
| 1976 | −0.5% |
| 1980 | −30.4% |
| 1984 | −27.4% |
| 1988 | −5.1% |
| 1992 | −0.3% |
| 1996 | −1.2% |
| 2000 | +15.0% |
| 2004 | −16.9% |
| 2008 | −2.0% |
| 2012 | −12.7% |
| 2016 | −24.5% |
| 2020 | −23.5% |
| 2024 | −25.5% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 3,883 | 6,650 | 10,832 | ||
| R | 4,016 | 6,581 | 10,900 | ||
| R | 3,301 | 5,659 | 9,623 | ||
| R | 4,226 | 5,495 | 9,974 | ||
| R | 4,838 | 5,039 | 10,134 | ||
| R | 4,237 | 6,003 | 10,431 | ||
| D | 4,904 | 3,596 | 8,740 | ||
| R | 3,775 | 3,885 | 8,826 | ||
| R | 3,404 | 3,430 | 9,372 | ||
| R | 3,777 | 4,186 | 8,043 | ||
| R | 2,932 | 5,161 | 8,145 | ||
| R | 2,698 | 5,355 | 8,747 | ||
| R | 3,987 | 4,029 | 8,087 | ||
| R | 3,835 | 4,366 | 8,225 | ||
| R | 2,733 | 3,977 | 7,092 | ||
| D | 3,747 | 3,208 | 6,955 | ||
| R | 3,061 | 4,065 | 7,126 | ||
| R | 2,987 | 4,063 | 7,050 | ||
| R | 2,220 | 4,802 | 7,022 | ||
| D | 2,932 | 2,904 | 5,893 | ||
| R | 2,359 | 3,313 | 5,672 | ||
| R | 3,064 | 4,179 | 7,243 | ||
| D | 4,349 | 2,702 | 7,438 | ||
| D | 4,930 | 1,693 | 6,730 | ||
| R | 2,841 | 2,971 | 5,839 | ||
| O | 693 | 1,504 | 3,781 | ||
| R | 1,147 | 2,555 | 4,134 | ||
| R | 1,429 | 1,438 | 2,937 | ||
| O | 1,289 | 0 | 2,928 | ||
| R | 1,118 | 1,644 | 2,894 | ||
| R | 788 | 1,968 | 2,851 | ||
| R | 1,268 | 1,639 | 2,940 | ||
| R | 1,330 | 1,423 | 2,769 | ||
| R | 228 | 1,166 | 2,160 | ||
| — | — | — | — | ||
| — | — | — | — | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
36.0%
Irish
10.2%
English
7.5%
French
2.4%
American
2.4%
Polish
1.5%
Italian
1.4%
African American
1.3%
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: 42.5 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
$72,821
Yankton County ranks near the middle of US counties.
Yankton County$72,821
South Dakota$75,081
United States$80,734
Yankton 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
11.9%
Children face moderate poverty.
Children under 1816.5%
Working age (18–64)10.4%
Seniors (65+)12.5%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
94.3%
speak English only
Spanish3.8%
Other Indo-European1.2%
Other languages0.5%
Asian & Pacific Islander0.2%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 40.3% of residents not counted as adherents by any reporting body.
Yankton County's largest city, also called Yankton, functions as a regional hub for healthcare and retail, drawing workers from surrounding farm country. The county backed the Republican presidential nominee by 23.5 points in 2020.
The Republican margin here reached forty-three points in 1892. Between 2020 and 2024 the county moved two points toward the Republican candidate; the 2024 margin was twenty-six points.
A population of 23,414, a 88% non-Hispanic-white share, and a median household income of $72,821 describe an agricultural county. The county's voting pattern over the last decade is most similar to that of Codington County and Kingsbury 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.
Yankton County, South Dakota. Akashic. https://akashic.app/county/46135/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in South Dakota
More farm belt counties
Frequently asked questions
How did Yankton County, South Dakota vote in 2024?
In 2024, Yankton County, South Dakota voted Republican by 25.5 points (R+26), carried by the Republican candidate. Out of 10,832 votes cast, 3,883 went Democratic and 6,650 went Republican.
What is Yankton County, South Dakota's political typology?
Akashic places Yankton County, South Dakota in the "Farm Belt" typology — Rural Plains and Midwest farm counties — Republican, with modest recent movement. 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 5 times, Republican 27 times, and other 2 times.
When did Yankton County, South Dakota last vote Democratic?
The most recent presidential election in which Yankton County, South Dakota voted Democratic was 2000.
How many people live in Yankton County, South Dakota?
Yankton County, South Dakota has a population of 23,414 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Yankton County, South Dakota?
Median household income in Yankton County, South Dakota is $72,821 — below the national median of $80,734. The South Dakota state median is $75,081.
What is the political history of Yankton County, South Dakota?
Akashic tracks 38 presidential elections in Yankton County, South Dakota from 1876 to 2024. Of those, 5 went Democratic and 27 went Republican. The county's typology — "Farm Belt" — captures where that record, its demographics, and its recent swing place it among American communities.