HarrisDemocratic23.1%5,784TrumpRepublican73.8%18,499OtherAll other candidates3.1%768
R+50.8- Lead
- 12,715
- Total
- 25,051
- vs nation
- R+49.3
modeled Census-place estimatemodeled estimate
Akashicstate senate district
Idaho 28th State Senate District
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
BidenDemocratic24.7%5,937TrumpRepublican72.1%17,313OtherAll other candidates3.2%764
R+47.4- Lead
- 11,376
- Total
- 24,014
- vs nation
- R+51.8
modeled Census-place estimatemodeled estimate
ClintonDemocratic20.2%4,045TrumpRepublican61.3%12,284OtherAll other candidates18.5%3,713
R+41.1- Lead
- 8,239
- Total
- 20,042
- vs nation
- R+43.2
modeled Census-place estimatemodeled estimate
ObamaDemocratic24.2%5,076RomneyRepublican73.0%15,276OtherAll other candidates2.8%581
R+48.7- Lead
- 10,200
- Total
- 20,933
- vs nation
- R+52.6
modeled Census-place estimatemodeled estimate
ObamaDemocratic29.0%5,846McCainRepublican67.3%13,571OtherAll other candidates3.7%737
R+38.3- Lead
- 7,725
- Total
- 20,154
- vs nation
- R+45.6
modeled Census-place estimatemodeled estimate
KerryDemocratic24.6%4,990BushRepublican74.0%15,025OtherAll other candidates1.4%277
R+49.5- Lead
- 10,035
- Total
- 20,292
- vs nation
- R+47.0
modeled Census-place estimatemodeled estimate
GoreDemocratic24.6%4,381BushRepublican70.7%12,601OtherAll other candidates4.7%831
R+46.1- Lead
- 8,220
- Total
- 17,813
- vs nation
- R+46.7
modeled Census-place estimatemodeled estimate
ClintonDemocratic31.4%5,533DoleRepublican53.5%9,433OtherAll other candidates15.1%2,660
R+22.1- Lead
- 3,900
- Total
- 17,626
- vs nation
- R+30.6
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- R+50.8MIT Election Lab
- Population
- 51,2702024 5-year
- Population density
- 18 / sq mi2024 5-year · TIGER/Line
- Land area
- 2,878 sq miTIGER/Line
- Median household income
- $81,1742024 5-year
- White (non-Hispanic)
- 80.1%2024 5-year
- Black
- 0.3%2024 5-year
- Hispanic / Latino
- 11.4%2024 5-year
- Peak Democratic margin
- D+63.1 in 1896MIT Election Lab
- Peak Republican margin
- R+53.5 in 1984MIT Election Lab
- Most similar
- State Senate District 31, ID · twin score 96.9
presidential history
Party record book
Idaho 28th State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1896–2024 · 33 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
William J. Bryan1896
81.6%
385 votes · D+63.1 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 62.2%
Republican
Ronald Reagan1984
76.2%
12,877 votes · R+53.5 · modeled estimate
Runner-up · George W. Bush, 2004 · 74.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
6,598votes
50.7% of the vote · D+1.3 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1940 · 6,088 votes
Republican
Donald Trump2024
18,499votes
73.8% of the vote · R+50.8 · modeled estimate
Runner-up · Donald Trump, 2020 · 17,313 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
William J. Bryan1896
+69.2pts D vs U.S.
Place D+63.1 · U.S. R+6.1 · modeled estimate
Runner-up · Woodrow Wilson, 1916 · +2.8 pts
Republican
William H. Taft1912
+56.4pts R vs U.S.
Place R+36.8 · U.S. D+19.5 · modeled estimate
Runner-up · Mitt Romney, 2012 · +52.6 pts
current representation
Current officeholders
RJim GuthrieState Senate · 28
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 3 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.
With a 50.8-point Republican presidential margin and a population just over 51,000, this rural district is among the most reliably one-sided constituencies in the state, leaving general-election competition largely absent.
Across the recorded series it reached a Democratic high of 63.1 points in 1896 and a Republican high of 53.5 points in 1984. Between 2020 and 2024 the district moved 3.4 points toward the Republican candidate; the 2024 margin was 50.8 points.
A population of 51,270, a 80% non-Hispanic-white share, and a median household income of $81,174 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 31 and State Senate District 30.
Political twins — state-senate districts
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
State Senate District 31
Idaho
96.9twin score
2008–2024 trajectory≠ % unaffiliated
State Senate District 30
Idaho
96.8twin score
2008–2024 trajectory
State Senate District 35
Idaho
96.3twin score
2008–2024 trajectory
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.
Idaho 28th State Senate District. Akashic. https://akashic.app/sld-upper/16028/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Idaho at the ballot boxAll elections →
Places within Idaho 28th State Senate District
counties it covers3
Frequently asked questions
How did Idaho 28th State Senate District vote in 2024?
In 2024, Idaho 28th State Senate District voted Republican by 50.8 points (R+50.8), carried by the Republican candidate. Out of 25,051 votes cast, 5,784 went Democratic and 18,499 went Republican.
When did Idaho 28th State Senate District last vote Democratic?
The most recent presidential election in which Idaho 28th State Senate District voted Democratic was 1964.
How many people live in Idaho 28th State Senate District?
Idaho 28th State Senate District has a population of 51,270 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Idaho 28th State Senate District?
Median household income in Idaho 28th State Senate District is $81,174 — above the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Idaho 28th State Senate District?
Akashic tracks 38 presidential elections in Idaho 28th State Senate District from 1876 to 2024. Of those, 8 went Democratic and 25 went Republican.