HarrisDemocratic22.6%1,253TrumpRepublican74.2%4,107OtherAll other candidates3.2%177
R+51.5- Lead
- 2,854
- Total
- 5,537
- vs nation
- R+50.1
modeled Census-place estimatemodeled estimate
Akashicstate house district
Montana 18th State House 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
BidenDemocratic24.1%1,381TrumpRepublican73.5%4,207OtherAll other candidates2.4%135
R+49.4- Lead
- 2,826
- Total
- 5,723
- vs nation
- R+53.8
modeled Census-place estimatemodeled estimate
ClintonDemocratic21.1%1,105TrumpRepublican72.4%3,788OtherAll other candidates6.4%337
R+51.3- Lead
- 2,683
- Total
- 5,230
- vs nation
- R+53.4
modeled Census-place estimatemodeled estimate
ObamaDemocratic28.5%1,504RomneyRepublican68.1%3,598OtherAll other candidates3.4%179
R+39.7- Lead
- 2,094
- Total
- 5,281
- vs nation
- R+43.5
modeled Census-place estimatemodeled estimate
ObamaDemocratic35.4%1,919McCainRepublican61.5%3,340OtherAll other candidates3.1%169
R+26.2- Lead
- 1,421
- Total
- 5,428
- vs nation
- R+33.5
modeled Census-place estimatemodeled estimate
KerryDemocratic28.1%1,585BushRepublican69.8%3,942OtherAll other candidates2.1%118
R+41.8- Lead
- 2,357
- Total
- 5,645
- vs nation
- R+39.3
modeled Census-place estimatemodeled estimate
GoreDemocratic23.9%1,374BushRepublican71.2%4,099OtherAll other candidates4.9%282
R+47.4- Lead
- 2,725
- Total
- 5,755
- vs nation
- R+47.9
modeled Census-place estimatemodeled estimate
ClintonDemocratic33.7%1,975DoleRepublican52.0%3,045OtherAll other candidates14.3%840
R+18.3- Lead
- 1,070
- Total
- 5,860
- vs nation
- R+26.8
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- R+51.5MIT Election Lab
- Population
- 11,5262024 5-year
- Population density
- 3.0 / sq mi2024 5-year · TIGER/Line
- Land area
- 3,786 sq miTIGER/Line
- Median household income
- $59,1962024 5-year
- White (non-Hispanic)
- 87.6%2024 5-year
- Black
- 0.3%2024 5-year
- Hispanic / Latino
- 2.4%2024 5-year
- Peak Democratic margin
- D+46.3 in 1936MIT Election Lab
- Peak Republican margin
- R+51.5 in 2024MIT Election Lab
- Most similar
- State House District 33, MT · twin score 94.3
presidential history
Party record book
Montana 18th State House 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
Franklin D. Roosevelt1936
71.7%
4,108 votes · D+46.3 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 61.1%
Republican
Donald Trump2024
74.2%
4,107 votes · R+51.5 · modeled estimate
Runner-up · Donald Trump, 2020 · 73.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1936
4,108votes
71.7% of the vote · D+46.3 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1940 · 3,695 votes
Republican
Ronald Reagan1980
4,814votes
71.0% of the vote · R+49.4 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 4,692 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
+23.9pts D vs U.S.
Place D+17.8 · U.S. R+6.1 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · +22.0 pts
Republican
Donald Trump2020
+53.8pts R vs U.S.
Place R+49.4 · U.S. D+4.5 · modeled estimate
Runner-up · Donald Trump, 2016 · +53.4 pts
current representation
Current officeholders
RLlew JonesState House · 18
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 2024 presidential margin of R+52, this rural district ranks among the most one-sided in the state. Its small population of roughly 11,500 reflects the sparse settlement patterns typical of Montana's agricultural interior.
Across the recorded series it reached a Democratic high of 46.3 points in 1936 and a Republican high of 51.5 points in 2024. Between 2020 and 2024 the district moved 2.2 points toward the Republican candidate; the 2024 margin was 51.5 points.
A population of 11,526, a 88% non-Hispanic-white share, and a median household income of $59,196 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 33 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 33
Montana
94.3twin score
2016–2024 trajectory12-yr trend≠ % Evangelical
State House District 33
North Dakota
93.7twin score
2016–2024 trajectoryelasticity≠ median income
State House District 28B
South Dakota
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.
Montana 18th State House District. Akashic. https://akashic.app/sld-lower/30018/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Montana at the ballot boxAll elections →
Places within Montana 18th State House District
counties it covers3
Frequently asked questions
How did Montana 18th State House District vote in 2024?
In 2024, Montana 18th State House District voted Republican by 51.5 points (R+51.5), carried by the Republican candidate. Out of 5,537 votes cast, 1,253 went Democratic and 4,107 went Republican.
When did Montana 18th State House District last vote Democratic?
The most recent presidential election in which Montana 18th State House District voted Democratic was 1964.
How many people live in Montana 18th State House District?
Montana 18th State House District has a population of 11,526 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Montana 18th State House District?
Median household income in Montana 18th State House District is $59,196 — below the national median of $80,734. The Montana state median is $72,509.
What is the political history of Montana 18th State House District?
Akashic tracks 38 presidential elections in Montana 18th State House District from 1876 to 2024. Of those, 10 went Democratic and 23 went Republican.