- Lead
- 184
- Total
- 6,116
- vs nation
- D+4.5
Montana 91st State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 594
- Total
- 5,859
- vs nation
- D+5.7
- Lead
- 151
- Total
- 4,856
- vs nation
- D+1.0
- Lead
- 484
- Total
- 4,718
- vs nation
- D+6.4
- Lead
- 1,055
- Total
- 5,030
- vs nation
- D+13.7
- Lead
- 87
- Total
- 4,387
- vs nation
- D+4.4
- Lead
- 290
- Total
- 3,821
- vs nation
- R+8.1
- Lead
- 464
- Total
- 3,828
- vs nation
- D+3.6
Key facts
- 2024 presidential margin
- D+3.0MIT Election Lab
- Population
- 10,8942024 5-year
- Population density
- 9.8 / sq mi2024 5-year · TIGER/Line
- Land area
- 1,109 sq miTIGER/Line
- Median household income
- $73,3432024 5-year
- White (non-Hispanic)
- 66.9%2024 5-year
- Black
- 0.3%2024 5-year
- Hispanic / Latino
- 3.2%2024 5-year
- Peak Democratic margin
- D+87.0 in 1896MIT Election Lab
- Peak Republican margin
- R+15.2 in 1952MIT Election Lab
- Most similar
- State House District 47, MT · twin score 87.1
presidential history
Party record book
Montana 91st 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
93.5%
72 votes · D+87.0 · modeled estimate
Runner-up · Woodrow Wilson, 1916 · 74.4%
Republican
Dwight D. Eisenhower1952
57.3%
989 votes · R+15.2 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 53.7%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
3,155votes
53.8% of the vote · D+10.1 · modeled estimate
Runner-up · Kamala Harris, 2024 · 3,041 votes
Republican
Donald Trump2024
2,857votes
46.7% of the vote · D+3.0 · modeled estimate
Runner-up · Donald Trump, 2020 · 2,561 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
+93.1pts D vs U.S.
Place D+87.0 · U.S. R+6.1 · modeled estimate
Runner-up · William J. Bryan, 1900 · +56.4 pts
Republican
George W. Bush2000
+8.1pts R vs U.S.
Place R+7.6 · U.S. D+0.5 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · +4.4 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.
Its 2024 presidential margin of D+3.0 ranked among Montana's closest, against D+21.1 in 2008. About 21,000 residents lived here, with White alone at 80.6% in the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 87.0 points in 1896 and a Republican high of 15.2 points in 1952. Between 2020 and 2024 the district moved 7.1 points toward the Republican candidate; the 2024 margin was 3.0 points.
A population of 10,894, a 67% non-Hispanic-white share, and a median household income of $73,343 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 47 and State House District 46.
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 91st State House District. Akashic. https://akashic.app/sld-lower/30091/. Accessed May 20, 2026. License: CC BY 4.0.