- Lead
- 22
- Total
- 781
- vs nation
- R+1.3
- Turnout
- 45.1%
Ziebach County, SD
▦ precinct · ▥ counties · ▢ no spatial detail
President margin by year
Place winner margin
President results by year
2024 turnout 45.1% of 1,768 citizens 18+
- Lead
- 77
- Total
- 906
- vs nation
- D+4.0
- Turnout
- 47.0%
- Lead
- 15
- Total
- 767
- vs nation
- R+4.0
- Turnout
- 43.2%
- Lead
- 125
- Total
- 761
- vs nation
- D+12.6
- Turnout
- —
- Lead
- 242
- Total
- 891
- vs nation
- D+19.9
- Turnout
- —
- Lead
- 194
- Total
- 1,116
- vs nation
- D+19.8
- Turnout
- —
- Lead
- 70
- Total
- 721
- vs nation
- R+10.2
- Turnout
- —
- Lead
- 108
- Total
- 930
- vs nation
- D+3.1
- Turnout
- —
Key facts
- 2024 presidential margin
- R+2.8MIT Election Lab
- Population
- 2,3772024 5-year
- Population density
- 1.2 / sq mi2024 5-year · TIGER/Line
- Land area
- 1,961 sq miTIGER/Line
- Median household income
- $53,9582024 5-year
- White (non-Hispanic)
- 27.1%2024 5-year
- Black
- 0.0%2024 5-year
- Hispanic / Latino
- 1.5%2024 5-year
- Peak Democratic margin
- D+45.6 in 1912MIT Election Lab
- Peak Republican margin
- R+42.6 in 1920MIT Election Lab
- Most similar
- Dewey County, SD · twin score 90.6
Turnout and midterm durability
Participation measured against the same-year citizen voting-age population. Audited cycles count total general-election participants — ballots or participating voters, not presidential candidate votes. Cycles before 2016 predate that series and are derived from the certified presidential returns instead; they are marked everywhere they appear and are excluded from the figures below.
- 2024 turnout
- 45.1%798 participants ÷ 1,768 CVAP
- 2020→2022 drop-off
- +5.8 ptsMidterm-resilient, low base
- Drop-off vs state
- -6.4 ptsPositive means a larger decline than the statewide pattern
- Mechanical 2026
- 39.3%–42.5%Recent-cycle and two-cycle persistence scenarios; not a forecast
Select a presidential cycle to show it on the map and results ledger above.
| Cycle | Participants | CVAP | Turnout | Series | Quality |
|---|---|---|---|---|---|
| 798 | 1,768 ± 21 | 45.1% | Audited | A/A | |
| 2022Mid | 725 | 1,759 ± 24 | 41.2% | Audited | C/A |
| 924 | 1,964 ± 15 | 47.0% | Audited | A/A | |
| 2018Mid | 832 | 1,901 ± 16 | 43.8% | Audited | A/A |
| 785 | 1,817 ± 17 | 43.2% | Audited | A/A | |
| 761 | 1,727 | 44.1% | Derived | — | |
| 891 | 1,731 | 51.5% | Derived | — | |
| 1,116 | 1,735 extrapolated | 64.3% | Derived | — |
Sources and methods
Audited cycles (2016, 2018, 2020, 2022, 2024) count total general-election participants against the same-year CVAP special tabulation, each cell carrying its own numerator and denominator quality grade. Derived cycles (2004, 2008, 2012) come from the certified presidential returns on this page over the ACS 5-year CVAP series, so they measure presidential votes cast rather than ballots — a floor on participation. Where a derived cycle predates the ACS its denominator is extrapolated rather than read, and says so on its own line below. They are shown for the longer arc and are excluded from the drop-off, excess-drop-off, and 2026 scenario figures above.
- 2024: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 311/228.
- 2022: numerator source 159, denominator source 157; top ticket votes; canonical-complete-contest-floor-v1; allocation share 0.0%; series 154/183.
- 2020: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 301/2.
- 2018: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 297/138.
- 2016: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 293/111.
- 2012 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
- 2008 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
- 2004 (derived): Certified presidential returns · extrapolated CVAP denominator; presidential votes cast — a floor on participation, not a ballot count; 2004 predates the ACS, so the denominator is a linear back-extrapolation from the 2008 and 2012 CVAP values, not a read figure.
Interactive election map
One map. Every available contest.
The map and local result cover Ziebach County only. The complete contest result is shown below for comparison.
Ziebach County result
0 precinct units · 0 candidate votes
Governor contest result
Loading the complete contest result…
Explore precinct resultsSearch, sort, compare years, or export CSV · 14 precincts
Precinct data
Results by precinct
14 precincts · 781 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -Precinct-5 North Dupree (Precinct-6 Redelm, Precinct-8 South Dupree)Precinct-5 North Dupree (Precinct-6 Redelm, Precinct-8 South Dupree) | 144 | 219 | 11 | 374 | 38.5% | 58.6% | R+20.1 |
|---|---|---|---|---|---|---|---|
| Precinct -Precinct-3 DavisPrecinct-3 Davis | 128 | 75 | 11 | 214 | 59.8% | 35.0% | D+24.8 |
| Precinct -Precinct-4 Glad ValleyPrecinct-4 Glad Valley | 9 | 54 | 0 | 63 | 14.3% | 85.7% | R+71.4 |
| Precinct -Precinct-2 Cherry CreekPrecinct-2 Cherry Creek | 48 | 10 | 1 | 59 | 81.4% | 16.9% | D+64.4 |
| Precinct -Precinct-7 Red ScaffoldPrecinct-7 Red Scaffold | 25 | 18 | 3 | 46 | 54.3% | 39.1% | D+15.2 |
| Precinct -Precinct-1 BridgerPrecinct-1 Bridger | 12 | 12 | 1 | 25 | 48.0% | 48.0% | Exact tie |
| VTD-precinct BridgerBR | 0 | 0 | 0 | 0 | — | — | No votes |
| VTD-precinct Cherry CreekCC | 0 | 0 | 0 | 0 | — | — | No votes |
| VTD-precinct DavisDV | 0 | 0 | 0 | 0 | — | — | No votes |
| VTD-precinct Glad ValleyGV | 0 | 0 | 0 | 0 | — | — | No votes |
| VTD-precinct North DupreeND | 0 | 0 | 0 | 0 | — | — | No votes |
| VTD-precinct Red ScaffoldRS | 0 | 0 | 0 | 0 | — | — | No votes |
| VTD-precinct RedelmRD | 0 | 0 | 0 | 0 | — | — | No votes |
| VTD-precinct South DupreeSD | 0 | 0 | 0 | 0 | — | — | No votes |
presidential history
Party record book
Ziebach County, SD · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1912–2024 · 29 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1932
66.7%
982 votes · D+35.3
Runner-up · Barack Obama, 2008 · 62.2%
Republican
Dwight D. Eisenhower1952
67.7%
779 votes · R+35.4
Runner-up · Warren G. Harding, 1920 · 65.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1932
982votes
66.7% of the vote · D+35.3
Runner-up · Franklin D. Roosevelt, 1936 · 737 votes
Republican
Dwight D. Eisenhower1952
779votes
67.7% of the vote · R+35.4
Runner-up · Herbert Hoover, 1928 · 759 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Woodrow Wilson1912
+26.0pts D vs U.S.
Place D+45.6 · U.S. D+19.5 · a third-party candidate carried the Place
Runner-up · Barack Obama, 2008 · +19.9 pts
Republican
Ronald Reagan1980
+24.7pts R vs U.S.
Place R+34.5 · U.S. R+9.7
Runner-up · Dwight D. Eisenhower, 1952 · +24.6 pts
Current officeholders
Seats representing Ziebach County, SD. A county elects none of these itself — they are the members for the 1 congressional, 1 state senate and 1 state house districts it falls inside, so parts of the county are represented by different members.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 45.3%428 | 54.7%516 | 944 |
| 2020 | R | 0.0%0 | 100.0%531 | 531 |
Registered voters
By party of registration, over time
Ziebach County, SD registers Democratic but votes Republican — a 19-point gap between how voters register and how they vote, the signature of ancestral registration that trails realignment.
1,595 registered voters · 2026
Who moves in and out
Net domestic migration over time
−1 net domestic migration · 2025
Net −286 over 2011–2025 · gain loss
| Year | Net domestic migration |
|---|---|
| 2011 | −17 |
| 2012 | +4 |
| 2013 | −45 |
| 2014 | −26 |
| 2015 | −37 |
| 2016 | +20 |
| 2017 | −124 |
| 2018 | −11 |
| 2019 | +14 |
| 2021 | +6 |
| 2022 | +2 |
| 2023 | −89 |
| 2024 | +18 |
| 2025 | −1 |
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.
Across the recorded series it reached a Democratic high of 45.6 points in 1912 and a Republican high of 42.6 points in 1920. Between 2020 and 2024 the county moved 11.3 points toward the Republican candidate; the 2024 margin was 2.8 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 Dewey County and Sioux County.
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
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 →
Ziebach County, South Dakota. Akashic. https://akashic.app/county/46137/. Accessed May 20, 2026. License: CC BY 4.0.