- Lead
- 3,113
- Total
- 12,876
- vs nation
- R+22.7
South Dakota 9th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 2,218
- Total
- 10,912
- vs nation
- R+24.8
- Lead
- 2,114
- Total
- 8,207
- vs nation
- R+27.8
- Lead
- 1,531
- Total
- 7,902
- vs nation
- R+23.2
- Lead
- 948
- Total
- 8,225
- vs nation
- R+18.8
- Lead
- 2,241
- Total
- 8,083
- vs nation
- R+25.3
- Lead
- 1,447
- Total
- 6,370
- vs nation
- R+23.2
- Lead
- 472
- Total
- 6,340
- vs nation
- R+16.0
Key facts
- 2024 presidential margin
- R+24.2MIT Election Lab
- Population
- 26,2272024 5-year
- Population density
- 299 / sq mi2024 5-year · TIGER/Line
- Land area
- 87.6 sq miTIGER/Line
- Median household income
- $84,2822024 5-year
- White (non-Hispanic)
- 82.4%2024 5-year
- Black
- 4.6%2024 5-year
- Hispanic / Latino
- 5.8%2024 5-year
- Peak Democratic margin
- D+40.7 in 1912MIT Election Lab
- Peak Republican margin
- R+70.4 in 1904MIT Election Lab
- Most similar
- State House District 11, SD · twin score 96.3
presidential history
Party record book
South Dakota 9th State House 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
Michael Dukakis1988
46.0%
2,631 votes · R+7.8 · modeled estimate
Runner-up · William J. Bryan, 1896 · 44.5%
Republican
Theodore Roosevelt1904
81.0%
512 votes · R+70.4 · modeled estimate
Runner-up · William H. Taft, 1908 · 71.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
4,749votes
36.9% of the vote · R+24.2 · modeled estimate
Runner-up · Joe Biden, 2020 · 4,198 votes
Republican
Donald Trump2024
7,862votes
61.1% of the vote · R+24.2 · modeled estimate
Runner-up · Donald Trump, 2020 · 6,416 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
+21.2pts D vs U.S.
Place D+40.7 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Michael Dukakis, 1988 · −0.1 pts
Republican
Benjamin Harrison1892
+51.5pts R vs U.S.
Place R+49.9 · U.S. D+1.7 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · +50.7 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 | 35.3%5,112 | 64.7%9,356 | 14,468 |
| 2020 | R | 0.0%0 | 100.0%8,447 | 8,447 |
South Dakota 9th State House District sits in the Northern Plains. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 40.7 points in 1912 and a Republican high of 70.4 points in 1904. Between 2020 and 2024 the district moved 3.9 points toward the Republican candidate; the 2024 margin was 24.2 points.
A population of 26,227, a 82% non-Hispanic-white share, and a median household income of $84,282 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 11 and State House District 2.
The state-house 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 9th State House District. Akashic. https://akashic.app/sld-lower/46009/. Accessed May 20, 2026. License: CC BY 4.0.