Ziebach County, South Dakota: Florida Surge county. In 2024, voted R+3%. Democratic peak: D+46 in 1912.
Key facts
- 2024 presidential margin
- R+3MIT Election Lab
- Political typology
- Florida SurgeAkashic typology
- Population
- 2,3772024 5-year
- Median household income
- $53,9582024 5-year
- White (non-Hispanic)
- 27.2%2024 5-year
- Black
- 0.0%2024 5-year
- Hispanic / Latino
- 1.5%2024 5-year
- Peak Democratic margin
- D+46 in 1912MIT Election Lab
- Peak Republican margin
- R+43 in 1920MIT Election Lab
- Most similar
- Corson County, SD · similarity 0.86
2024 results by precinct
2024 precinct map of Ziebach CountyPrecinct-level 2024 presidential results for Ziebach 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 | +45.6% |
| 1916 | +12.8% |
| 1920 | −42.6% |
| 1924 | −42.2% |
| 1928 | −10.4% |
| 1932 | +35.3% |
| 1936 | +13.3% |
| 1940 | −0.3% |
| 1944 | +3.4% |
| 1948 | +4.1% |
| 1952 | −35.4% |
| 1956 | −14.1% |
| 1960 | −5.2% |
| 1964 | +10.7% |
| 1968 | −11.6% |
| 1972 | −12.4% |
| 1976 | +0.1% |
| 1980 | −34.5% |
| 1984 | −8.8% |
| 1988 | +8.2% |
| 1992 | −6.6% |
| 1996 | +11.6% |
| 2000 | +9.7% |
| 2004 | +17.4% |
| 2008 | +27.2% |
| 2012 | +16.4% |
| 2016 | −2.0% |
| 2020 | +8.5% |
| 2024 | −2.8% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 366 | 388 | 781 | ||
| D | 481 | 404 | 906 | ||
| R | 353 | 368 | 767 | ||
| D | 439 | 314 | 761 | ||
| D | 554 | 312 | 891 | ||
| D | 641 | 447 | 1,116 | ||
| D | 384 | 314 | 721 | ||
| D | 483 | 375 | 930 | ||
| R | 280 | 328 | 730 | ||
| D | 427 | 362 | 795 | ||
| R | 359 | 429 | 792 | ||
| R | 246 | 523 | 804 | ||
| D | 370 | 369 | 761 | ||
| R | 378 | 486 | 870 | ||
| R | 350 | 449 | 854 | ||
| D | 554 | 447 | 1,001 | ||
| R | 512 | 568 | 1,080 | ||
| R | 472 | 627 | 1,099 | ||
| R | 372 | 779 | 1,151 | ||
| D | 503 | 463 | 980 | ||
| D | 354 | 331 | 685 | ||
| R | 687 | 691 | 1,378 | ||
| D | 737 | 561 | 1,319 | ||
| D | 982 | 462 | 1,473 | ||
| R | 615 | 759 | 1,380 | ||
| R | 153 | 659 | 1,198 | ||
| R | 177 | 507 | 775 | ||
| D | 275 | 211 | 501 | ||
| O | 349 | 0 | 766 | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — |
Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
12.7%
Irish
8.0%
American
6.6%
English
2.7%
Scottish
0.5%
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: 36.7 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
$53,958
Ziebach County ranks in the bottom 25% of US counties.
Ziebach County$53,958
South Dakota$75,081
United States$80,734
Ziebach County ranks in the bottom 25% 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
33.5%
Nearly half of children live in poverty.
Children under 1849.0%
Working age (18–64)29.2%
Seniors (65+)8.3%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
82.8%
speak English only
Other languages14.4%
Other Indo-European2.5%
Asian & Pacific Islander0.2%
Spanish0.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 60.6% of residents not counted as adherents by any reporting body.
Ziebach County, home to the Cheyenne River Sioux Reservation, swung to a Republican margin of 2.8 points in 2024 after years of returning large Democratic margins — a shift driven almost entirely by Native American voter turnout patterns.
The Democratic margin here once reached forty-six points in 1912. Between 2020 and 2024 the county moved eleven points toward the Republican candidate; the 2024 margin was three points.
A population of 2,377, a 27% non-Hispanic-white share, and a median household income of $53,958 describe the county. The county's voting pattern over the last decade is most similar to that of Corson County and Ashland 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.
Ziebach County, South Dakota. Akashic. https://akashic.app/county/46137/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in South Dakota
More florida surge counties
Frequently asked questions
How did Ziebach County, South Dakota vote in 2024?
In 2024, Ziebach County, South Dakota voted Republican by 2.8 points (R+3), carried by the Republican candidate. Out of 781 votes cast, 366 went Democratic and 388 went Republican.
What is Ziebach County, South Dakota's political typology?
Akashic places Ziebach 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 14 times, Republican 14 times, and other 1 times.
When did Ziebach County, South Dakota last vote Democratic?
The most recent presidential election in which Ziebach County, South Dakota voted Democratic was 2020.
How many people live in Ziebach County, South Dakota?
Ziebach County, South Dakota has a population of 2,377 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Ziebach County, South Dakota?
Median household income in Ziebach County, South Dakota is $53,958 — below the national median of $80,734. The South Dakota state median is $75,081.
What is the political history of Ziebach County, South Dakota?
Akashic tracks 38 presidential elections in Ziebach County, South Dakota from 1876 to 2024. Of those, 14 went Democratic and 14 went Republican. The county's typology — "Florida Surge" — captures where that record, its demographics, and its recent swing place it among American communities.