Gallatin County, MT

MT · Presidential Elections 1892–2024

D+3.2
2024 Margin
R+4.3%
2020→2024 Swing
D since 2016
Voting Streak
124K
Population

Gallatin County, MT (Montana) voted D+3.2 for Kamala Harris (Democrat) in the 2024 presidential election, with Harris receiving 34,938 votes (49.98%) to 32,695 (46.78%) for Trump.

This represents a R+4.3% swing toward Republicans compared to 2020. Gallatin County is classified as a competitive Democratic county. Gallatin County has voted Democratic in every presidential election since 2016. The county has a population of approximately 124,074.

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Quick Stats

2024 ResultD+3.2
2020→2024 SwingR+4.3%
Voting StreakD since 2016
Elections on Record34

Demographics

Population124,074
Median Age
34.2(US: 38.7)
College (BA+)
54.3%(US: 35.2%)
Median Income
$93,528(US: $80k)
White (non-Hisp)
88.3%(US: 57.6%)
Hispanic
5.4%(US: 19.1%)
Asian
1.4%(US: 5.7%)
Homeownership
61.1%(US: 64.5%)
Poverty Rate
9.5%(US: 12.3%)
Veterans
5.1%(US: 6.2%)
Non-English (CVAP)
3.0%(US: 17.0%)
Source: Census ACS 5-Year (2020-2024)

Community Profile

Religious Composition

Source: Religion Census 2020
Evangelical
11.0%(Below Average)
Catholic
8.6%(Below Average)
LDS/Mormon
4.2%(Major Center)
Mainline Protestant
3.3%

Ancestry Groups

Source: Census ACS

Top reported ancestry groups (compared to national average).

German
22.3%Above Average(1.8x)
English
14.6%Above Average(1.6x)
Irish
13.7%(1.5x)
American Heritage
4.7%
Italian
3.5%
Mexican
2.8%
+ 3 more reported ancestry groups

Age Distribution

Median:34.2 yrs(US: 38.5)
Under 18
18.8%↓
18-29
15.9%↑
30-44
23.8%↑
45-64
27.9%↑
65+
13.6%↓
National average

Employment by Industry

Census ACS
Professional & Technical
13.6%(1.1x US)
Retail Trade
12.1%(1.1x US)
Educational Services
11.6%(1.3x US)
Construction
11.4%(1.7x US)
Manufacturing
6.1%(0.6x US)
Healthcare & Social Services
5.3%(1.1x US)
National average
+ 1 more sectors

Presidential Elections

Presidential Results

YearDemocratRepublicanMarginSwing
202450.0%(34,938)46.8%(32,695)D+3.2R+4.3
202052.2%(37,044)44.7%(31,696)D+7.5D+6.7
201645.0%(24,246)44.2%(23,802)D+0.8D+5.8
201245.8%(21,961)50.8%(24,358)R+5.0R+8.4
200850.3%(24,205)46.9%(22,578)D+3.4D+18.4
200441.2%(16,405)56.2%(22,392)R+15.0D+12.5
200031.2%(10,009)58.8%(18,833)R+27.5R+15.2
199637.7%(10,972)50.1%(14,559)R+12.3R+6.9
199233.1%(9,535)38.6%(11,109)R+5.5D+10.4
198841.1%(9,527)56.9%(13,214)R+15.9D+15.1

Source: Official state election returns via MIT Election Data + Science Lab

Presidential Margin Trend

Gallatin County, MT • 1892–2024

D+R++60+40+200-20-40-6018921900190819161924193219401948195619641972198019881996200420122020
Democratic margin
Republican margin

Senate Elections

Senate Results

YearDemocratRepublicanMarginSwing
202455.4%(39,094)43.3%(30,537)D+12.1D+1.3
202055.4%(39,540)44.6%(31,829)D+10.8R+10.7
201859.4%(33,251)38.0%(21,248)D+21.5D+29.3
201444.9%(15,984)52.7%(18,756)R+7.8R+16.9
201251.6%(24,781)42.5%(20,386)D+9.2R+33.4
200871.3%(33,142)28.7%(13,359)D+42.5D+42.9
200648.8%(16,789)49.1%(16,917)R+0.4R+26.8
200259.7%(14,498)33.3%(8,091)D+26.4D+33.5
200045.5%(14,612)52.6%(16,879)R+7.1R+2.1
199644.9%(13,106)49.9%(14,546)R+4.9D+26.3

Source: Official state election returns via MIT Election Data + Science Lab

Governor Elections

Governor Results

YearDemocratRepublicanMarginSwing
202450.4%(35,200)47.1%(32,843)D+3.4R+4.3
202051.8%(36,788)44.2%(31,368)D+7.6R+7.3
201655.8%(30,758)40.9%(22,534)D+14.9D+9.6
201250.7%(24,091)45.4%(21,576)D+5.3R+21.4
200862.3%(29,541)35.6%(16,879)D+26.7D+27.9
200447.3%(18,575)48.5%(19,036)R+1.2D+6.6
200045.1%(14,438)52.9%(16,909)R+7.7D+54.5
199618.9%(5,447)81.1%(23,357)R+62.2R+52.8
199245.3%(12,969)54.7%(15,654)R+9.4D+7.5
198840.5%(9,270)57.4%(13,139)R+16.9R+53.0

Source: Official state election returns via MIT Election Data + Science Lab

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