- Lead
- 2,179
- Total
- 4,447
- vs nation
- R+47.5
South Dakota 27th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 465
- Total
- 7,655
- vs nation
- D+1.6
- Lead
- 322
- Total
- 7,056
- vs nation
- D+2.5
- Lead
- 1,204
- Total
- 7,213
- vs nation
- D+12.8
- Lead
- 1,202
- Total
- 7,449
- vs nation
- D+8.9
- Lead
- 1,452
- Total
- 8,925
- vs nation
- D+18.7
- Lead
- 328
- Total
- 5,623
- vs nation
- R+6.4
- Lead
- 447
- Total
- 9,106
- vs nation
- R+1.3
Key facts
- 2024 presidential margin
- R+49.0MIT Election Lab
- Population
- 23,9102024 5-year
- Population density
- 3.5 / sq mi2024 5-year · TIGER/Line
- Land area
- 6,918 sq miTIGER/Line
- Median household income
- $47,5802024 5-year
- White (non-Hispanic)
- 24.6%2024 5-year
- Black
- 0.3%2024 5-year
- Hispanic / Latino
- 2.8%2024 5-year
- Peak Democratic margin
- D+68.8 in 1912MIT Election Lab
- Peak Republican margin
- R+100.0 in 1900MIT Election Lab
- Most similar
- State Senate District 25, WY · twin score 72.2
presidential history
Party record book
South Dakota 27th State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 20 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Woodrow Wilson1912
68.8%
183 votes · D+68.8 · modeled estimate
Runner-up · Barack Obama, 2012 · 57.8%
Republican
Theodore Roosevelt1904
100.0%
31 votes · R+100.0 · modeled estimate
Runner-up · William McKinley, 1900 · 100.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
John Kerry2004
5,088votes
57.0% of the vote · D+16.3 · modeled estimate
Runner-up · Barack Obama, 2008 · 4,266 votes
Republican
George W. Bush2004
3,636votes
40.7% of the vote · D+16.3 · modeled estimate
Runner-up · Donald Trump, 2020 · 3,509 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
+49.3pts D vs U.S.
Place D+68.8 · U.S. D+19.5 · modeled estimate
Runner-up · John Kerry, 2004 · +18.7 pts
Republican
William McKinley1900
+92.5pts R vs U.S.
Place R+100.0 · U.S. R+7.5 · modeled estimate
Runner-up · Benjamin Harrison, 1892 · +87.9 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 30.6%1,544 | 69.4%3,495 | 5,039 |
South Dakota 27th State Senate District sits in the Northern Plains. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 68.8 points in 1912 and a Republican high of 100.0 points in 1900. Between 2020 and 2024 the district moved 55.1 points toward the Republican candidate; the 2024 margin was 49.0 points.
A population of 23,910, a 25% non-Hispanic-white share, and a median household income of $47,580 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 25 and State Senate District 17.
The state-senate districts 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.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
South Dakota 27th State Senate District. Akashic. https://akashic.app/sld-upper/46027/. Accessed May 20, 2026. License: CC BY 4.0.