HarrisDemocratic16.7%1,129TrumpRepublican81.1%5,494OtherAll other candidates2.2%148
R+64.5- Lead
- 4,365
- Total
- 6,771
- vs nation
- R+63.0
modeled Census-place estimatemodeled estimate
Akashicstate house district
South Dakota State House District 28B
Office (updates table and map)
President margin by year
Place winner margin
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
President results by year
Modeled candidate-vote estimate on current district boundaries
BidenDemocratic17.4%1,136TrumpRepublican80.0%5,230OtherAll other candidates2.6%171
R+62.6- Lead
- 4,094
- Total
- 6,537
- vs nation
- R+67.1
modeled Census-place estimatemodeled estimate
ClintonDemocratic14.4%862TrumpRepublican79.2%4,759OtherAll other candidates6.4%385
R+64.9- Lead
- 3,897
- Total
- 6,006
- vs nation
- R+67.0
modeled Census-place estimatemodeled estimate
ObamaDemocratic22.1%1,285RomneyRepublican74.8%4,351OtherAll other candidates3.1%183
R+52.7- Lead
- 3,066
- Total
- 5,819
- vs nation
- R+56.5
modeled Census-place estimatemodeled estimate
ObamaDemocratic29.6%1,762McCainRepublican67.0%3,989OtherAll other candidates3.4%203
R+37.4- Lead
- 2,227
- Total
- 5,954
- vs nation
- R+44.7
modeled Census-place estimatemodeled estimate
KerryDemocratic22.9%1,399BushRepublican74.8%4,575OtherAll other candidates2.4%144
R+51.9- Lead
- 3,176
- Total
- 6,118
- vs nation
- R+49.5
modeled Census-place estimatemodeled estimate
GoreDemocratic20.4%1,083BushRepublican76.7%4,066OtherAll other candidates2.8%151
R+56.3- Lead
- 2,983
- Total
- 5,300
- vs nation
- R+56.8
modeled Census-place estimatemodeled estimate
ClintonDemocratic29.3%1,587DoleRepublican55.6%3,019OtherAll other candidates15.1%819
R+26.4- Lead
- 1,432
- Total
- 5,425
- vs nation
- R+34.9
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- R+64.5MIT Election Lab
- Population
- 13,2562024 5-year
- Population density
- 2.3 / sq mi2024 5-year · TIGER/Line
- Land area
- 5,851 sq miTIGER/Line
- Median household income
- $73,7352024 5-year
- White (non-Hispanic)
- 90.0%2024 5-year
- Black
- 0.1%2024 5-year
- Hispanic / Latino
- 3.6%2024 5-year
- Peak Democratic margin
- D+38.4 in 1912MIT Election Lab
- Peak Republican margin
- R+64.9 in 2016MIT Election Lab
- Most similar
- State House District 34, MT · twin score 95.6
presidential history
Party record book
South Dakota State House District 28B · 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
William J. Bryan1896
56.1%
286 votes · D+12.5 · modeled estimate
Runner-up · Woodrow Wilson, 1916 · 53.7%
Republican
Donald Trump2024
81.1%
5,494 votes · R+64.5 · modeled estimate
Runner-up · Donald Trump, 2020 · 80.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Woodrow Wilson1916
2,166votes
53.7% of the vote · D+15.9 · modeled estimate
Runner-up · Michael Dukakis, 1988 · 2,078 votes
Republican
Donald Trump2024
5,494votes
81.1% of the vote · R+64.5 · modeled estimate
Runner-up · Donald Trump, 2020 · 5,230 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
+18.9pts D vs U.S.
Place D+38.4 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · William J. Bryan, 1896 · +18.6 pts
Republican
Donald Trump2020
+67.1pts R vs U.S.
Place R+62.6 · U.S. D+4.5 · modeled estimate
Runner-up · Donald Trump, 2016 · +67.0 pts
current representation
Current officeholders
RTravis IsmayState House · 28B
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 2 House
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 | 15.1%1,166 | 84.9%6,580 | 7,746 |
| 2020 | R | 0.0%0 | 100.0%5,372 | 5,372 |
District 28B recorded a 64.5-point Republican presidential margin in 2024, placing it among the state's most one-sided constituencies. Its small population of roughly 13,000 reflects the sparsely settled rural character typical of western South Dakota.
Across the recorded series it reached a Democratic high of 38.4 points in 1912 and a Republican high of 64.9 points in 2016. Between 2020 and 2024 the district moved 1.8 points toward the Republican candidate; the 2024 margin was 64.5 points.
A population of 13,256, a 90% non-Hispanic-white share, and a median household income of $73,735 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 34 and State House District 33.
Political twins — state-house districts
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
State House District 34
Montana
95.6twin score
2012–2024 trajectory≠ Scottish ancestry
State House District 33
Montana
93.5twin score
2012–2024 trajectory≠ % Evangelical
State House District 18
Montana
93.3twin score
2016–2024 trajectoryelasticity≠ Polish ancestry
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
South Dakota State House District 28B. Akashic. https://akashic.app/sld-lower/4628B/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
South Dakota at the ballot boxAll elections →
Places within South Dakota State House District 28B
counties it covers3
Frequently asked questions
How did South Dakota State House District 28B vote in 2024?
In 2024, South Dakota State House District 28B voted Republican by 64.5 points (R+64.5), carried by the Republican candidate. Out of 6,771 votes cast, 1,129 went Democratic and 5,494 went Republican.
When did South Dakota State House District 28B last vote Democratic?
The most recent presidential election in which South Dakota State House District 28B voted Democratic was 1964.
How many people live in South Dakota State House District 28B?
South Dakota State House District 28B has a population of 13,256 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in South Dakota State House District 28B?
Median household income in South Dakota State House District 28B is $73,735 — below the national median of $80,734. The South Dakota state median is $75,081.
What is the political history of South Dakota State House District 28B?
Akashic tracks 38 presidential elections in South Dakota State House District 28B from 1876 to 2024. Of those, 5 went Democratic and 27 went Republican.