- Lead
- 5,643
- Total
- 14,241
- vs nation
- R+38.2
Montana 3rd State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 5,035
- Total
- 13,246
- vs nation
- R+42.5
- Lead
- 4,302
- Total
- 10,216
- vs nation
- R+44.2
- Lead
- 3,737
- Total
- 9,448
- vs nation
- R+43.4
- Lead
- 2,686
- Total
- 9,305
- vs nation
- R+36.1
- Lead
- 3,667
- Total
- 8,332
- vs nation
- R+41.6
- Lead
- 3,514
- Total
- 7,302
- vs nation
- R+48.6
- Lead
- 1,727
- Total
- 6,821
- vs nation
- R+33.8
Key facts
- 2024 presidential margin
- R+39.6MIT Election Lab
- Population
- 21,8362024 5-year
- Population density
- 49 / sq mi2024 5-year · TIGER/Line
- Land area
- 445 sq miTIGER/Line
- Median household income
- $75,1982024 5-year
- White (non-Hispanic)
- 90.0%2024 5-year
- Black
- 0.2%2024 5-year
- Hispanic / Latino
- 3.0%2024 5-year
- Peak Democratic margin
- D+45.6 in 1896MIT Election Lab
- Peak Republican margin
- R+48.1 in 2000MIT Election Lab
- Most similar
- State Senate District 6, MT · twin score 96.1
presidential history
Party record book
Montana 3rd 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
72.8%
273 votes · D+45.6 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 60.0%
Republican
George W. Bush2004
70.5%
5,878 votes · R+44.0 · modeled estimate
Runner-up · George W. Bush, 2000 · 69.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
4,105votes
28.8% of the vote · R+39.6 · modeled estimate
Runner-up · Joe Biden, 2020 · 3,927 votes
Republican
Donald Trump2024
9,748votes
68.5% of the vote · R+39.6 · modeled estimate
Runner-up · Donald Trump, 2020 · 8,962 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
+51.7pts D vs U.S.
Place D+45.6 · U.S. R+6.1 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · +3.3 pts
Republican
George W. Bush2000
+48.6pts R vs U.S.
Place R+48.1 · U.S. D+0.5 · modeled estimate
Runner-up · Donald Trump, 2016 · +44.2 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.
With a 2024 presidential margin of just 1.7 points, this district swings closer to statewide balance than most of Montana, making it a reliable bellwether for shifts in rural and small-town voter sentiment.
Across the recorded series it reached a Democratic high of 45.6 points in 1896 and a Republican high of 48.1 points in 2000. Between 2020 and 2024 the district moved 1.6 points toward the Republican candidate; the 2024 margin was 39.6 points.
A population of 21,836, a 90% non-Hispanic-white share, and a median household income of $75,198 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 6 and State Senate District 4.
The state-senate 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 3rd State Senate District. Akashic. https://akashic.app/sld-upper/30003/. Accessed May 20, 2026. License: CC BY 4.0.