Akashic
1892–2024
Akashic
Montana 31st State Senate District
presidential margin
2008D+19.62012D+12.62016D+17.82020D+24.42024D+18.0
full record · 2008 → 2024
D+18.0
2024
median income$78,366U.S. $80,734 · MT $72,509
median age24.5U.S. 39.1 · MT 40.8
poverty rate18.3%U.S. 12.5% · MT 11.5%
bachelor’s+ (25+)54.3%U.S. 35.6% · MT 35.3%
non-english5.2%U.S. 22.3% · MT 4.2%
race · ethnicity · ancestry
German22.1%
English14.5%
Irish13.6%
Mexican3.1%
Spanish0.4%
Puerto Rican0.3%
Chinese1.2%
Korean0.4%
religion

Religious adherence is published only at the county level (U.S. Religion Census). See Gallatin County.

American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024.

Montana 31st State Senate District

Akashic
Montana 31st State Senate DistrictHarrisD+18.0
2024
2024 presidential margin for Montana 31st State Senate DistrictThe boundary of Montana 31st State Senate District, filled by its 2024 presidential margin (D+18.0), over faint outlines of the counties it is drawn from.Montana 31st State Senate District · D+18.0
How it voted
Share of the 2024 vote
Kamala Harris ✓Democratic57.1%5,850
Donald TrumpRepublican39.2%4,012
Robert F. Kennedy Jr.We The People3.7%377
D+60
R+60
District boundary, filled by its own 2024 D-vs-R margin — precinct detail where available, over the 1 county it's drawn from (shown faint).
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
County-level results (1 county) — table
2024 presidential result by county for Montana 31st State Senate District — winner and D-vs-R margin.
CountyWinnerMargin
Gallatin County, MTDemocraticD+3.2
5 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). † 2012 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
YearWonDemocraticRepublicanOtherMarginTotal
D
57.1%Harris5,850
39.2%Trump4,012
3.7%Kennedy377
+18.0%
10,239
D
60.3%Biden7,052
35.9%Trump4,195
3.8%Jorgensen450
+24.4%
11,697
D
53.1%Clinton4,868
35.2%Trump3,233
11.7%Johnson1,072
+17.8%
9,173
D
54.5%Obama4,449
41.8%Romney3,418
3.7%Johnson303
+12.6%
8,170
D
58.3%Obama4,912
38.7%McCain3,259
3.0%Paul256
+19.6%
8,427
presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 2008 to 2024. Most recent: +18.0% in 2024.+18.0%DR20082024
Presidential margin over time
YearMargin (D minus R)
2008+19.6%
2012+12.6%
2016+17.8%
2020+24.4%
2024+18.0%
DemocraticRepublican
current representation
Current officeholders
DPat FlowersState Senate · 31

State legislative officeholder from OpenStates nightly current-legislator data.

Source · OpenStates current legislator CSV.

In 2024 it voted Democratic by D+18.0, against D+19.6 in 2008. In the 2024 ACS 5-year, 54.3% of adults held a bachelor's degree or higher.

Across the recorded series it reached a Democratic high of 24.4 points in 2020. Between 2020 and 2024 the district moved 6.5 points toward the Republican candidate; the 2024 margin was 18.0 points.

A population of 21,600, a 87% non-Hispanic-white share, and a median household income of $78,366 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 33 and State Senate District 32.

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 33
Montana
97.6twin score
college sharepopulation scale% unaffiliated
State Senate District 32
Montana
93.3twin score
college sharepopulation scale% unaffiliated
State Senate District 49
Montana
92.8twin score
population scale% unaffiliated2024 margin≠ French 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.

Compare two places, side by side

Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →

Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Montana 31st State Senate District. Akashic. https://akashic.app/sld-upper/30031/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions

How did Montana 31st State Senate District vote in 2024?
In 2024, Montana 31st State Senate District voted Democratic by 18.0 points (D+18.0), carried by the Democratic candidate. Out of 10,239 votes cast, 5,850 went Democratic and 4,012 went Republican.
How many people live in Montana 31st State Senate District?
Montana 31st State Senate District has a population of 21,600 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Montana 31st State Senate District?
Median household income in Montana 31st State Senate District is $78,366 — below the national median of $80,734. The Montana state median is $72,509.
What is the political history of Montana 31st State Senate District?
Akashic tracks 5 presidential elections in Montana 31st State Senate District from 2008 to 2024. Of those, 5 went Democratic and 0 went Republican.