- Lead
- 3,219
- Total
- 5,972
- vs nation
- D+55.4
Montana 100th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 3,381
- Total
- 6,249
- vs nation
- D+49.6
- Lead
- 2,215
- Total
- 5,077
- vs nation
- D+41.5
- Lead
- 2,343
- Total
- 4,646
- vs nation
- D+46.6
- Lead
- 2,783
- Total
- 4,989
- vs nation
- D+48.5
- Lead
- 1,675
- Total
- 4,046
- vs nation
- D+43.9
- Lead
- 767
- Total
- 3,694
- vs nation
- D+20.2
- Lead
- 1,485
- Total
- 3,753
- vs nation
- D+32.0
Key facts
- 2024 presidential margin
- D+53.9MIT Election Lab
- Population
- 10,7152024 5-year
- Population density
- 4,659 / sq mi2024 5-year · TIGER/Line
- Land area
- 2.3 sq miTIGER/Line
- Median household income
- $58,1032024 5-year
- White (non-Hispanic)
- 83.0%2024 5-year
- Black
- 1.4%2024 5-year
- Hispanic / Latino
- 4.9%2024 5-year
- Peak Democratic margin
- D+90.1 in 1896MIT Election Lab
- Peak Republican margin
- R+0.3 in 1924MIT Election Lab
- Most similar
- State House District 95, MT · twin score 98.5
presidential history
Party record book
Montana 100th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
William J. Bryan1896
95.1%
250 votes · D+90.1 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 80.7%
Republican
Dwight D. Eisenhower1956
41.9%
504 votes · D+16.2 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 40.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
4,689votes
75.0% of the vote · D+54.1 · modeled estimate
Runner-up · Kamala Harris, 2024 · 4,470 votes
Republican
Donald Trump2020
1,308votes
20.9% of the vote · D+54.1 · modeled estimate
Runner-up · Donald Trump, 2024 · 1,251 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
+96.2pts D vs U.S.
Place D+90.1 · U.S. R+6.1 · modeled estimate
Runner-up · William J. Bryan, 1900 · +70.2 pts
Republican
William H. Taft1912
−13.6pts R vs U.S.
Place D+33.1 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · George W. Bush, 2000 · −20.2 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.
Centered on the University of Montana campus in Missoula, this district's D+53.9 presidential margin in 2024 makes it a consistent outlier in an otherwise Republican-leaning state.
Across the recorded series it reached a Democratic high of 90.1 points in 1896 and a Republican high of 0.3 points in 1924. The 2024 margin was 53.9 points.
A population of 10,715, a 83% non-Hispanic-white share, and a median household income of $58,103 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 95 and State House District 118.
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 →
Montana 100th State House District. Akashic. https://akashic.app/sld-lower/30100/. Accessed May 20, 2026. License: CC BY 4.0.