Marin County, CA

CA · Presidential Elections 1876–2024

D+63.9
2024 Margin
R+2.6%
2020→2024 Swing
D since 1984
Voting Streak
258K
Population

Marin County, CA (California) voted D+63.9 for Kamala Harris (Democrat) in the 2024 presidential election, with Harris receiving 116,152 votes (80.59%) to 24,054 (16.69%) for Trump.

This represents a R+2.6% swing toward Republicans compared to 2020. Marin County is classified as a deep Democratic county. Marin County has voted Democratic in every presidential election since 1984. The county has a population of approximately 257,969.

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Quick Stats

2024 ResultD+63.9
2020→2024 SwingR+2.6%
Voting StreakD since 1984
Elections on Record38

Demographics

Population257,969
Median Age
47.4(US: 38.7)
College (BA+)
61.1%(US: 35.2%)
Median Income
$149,091(US: $80k)
White (non-Hisp)
66.6%(US: 57.6%)
Hispanic
19.5%(US: 19.1%)
Black
2.4%(US: 12.2%)
Asian
6.3%(US: 5.7%)
Homeownership
64.7%(US: 64.5%)
Poverty Rate
8.3%(US: 12.3%)
Veterans
3.8%(US: 6.2%)
Non-English (CVAP)
14.3%(US: 17.0%)
Source: Census ACS 5-Year (2020-2024)

Community Profile

Religious Composition

Source: Religion Census 2020
Catholic
23.4%
Mainline Protestant
3.1%
Evangelical
3.0%(Below Average)
LDS/Mormon
0.7%
Jewish
0.5%
+ 1 more traditions

Ancestry Groups

Source: Census ACS

Top reported ancestry groups (compared to national average).

English
13.9%(1.6x)
German
13.3%
Irish
13.3%(1.4x)
Mexican
7.9%
Italian
7.0%(1.4x)
Polish
2.9%
+ 4 more reported ancestry groups

Age Distribution

Median:47.4 yrs(US: 38.5)
Under 18
19.4%↓
18-29
7.1%↓
30-44
13.8%↓
45-64
36.0%↑
65+
23.8%↑
National average

Employment by Industry

Census ACS
Professional & TechnicalMajor Specialization
22.2%(1.9x US)
Retail Trade
9.3%(0.9x US)
Educational Services
7.9%
Construction
6.4%
Healthcare & Social Services
5.8%(1.3x US)
Manufacturing
4.6%(0.5x US)
National average
+ 1 more sectors

Presidential Elections

Presidential Results

YearDemocratRepublicanMarginSwing
202480.6%(116,152)16.7%(24,054)D+63.9R+2.6
202082.3%(128,288)15.8%(24,612)D+66.5D+4.7
201677.3%(108,707)15.5%(21,771)D+61.8D+10.6
201274.1%(99,896)22.9%(30,880)D+51.2R+6.4
200877.8%(109,320)20.2%(28,384)D+57.6D+9.8
200473.2%(99,070)25.4%(34,378)D+47.8D+11.9
200064.3%(79,135)28.3%(34,872)D+35.9D+6.1
199658.0%(67,406)28.2%(32,714)D+29.9R+5.1
199258.3%(76,158)23.3%(30,479)D+34.9D+15.8
198858.9%(69,394)39.7%(46,855)D+19.1D+18.6

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

Presidential Margin Trend

Marin County, CA • 1876–2024

D+R++60+40+200-20-40-601876188418921900190819161924193219401948195619641972198019881996200420122020
Democratic margin
Republican margin

Senate Elections

Senate Results

YearDemocratRepublicanMarginSwing
202479.8%(112,842)20.2%(28,490)D+59.7R+36.0
201895.7%(117,646)0.0%(0)D+95.7R+7.0
2016102.7%(128,674)0.0%(0)D+102.7D+42.5
201280.1%(105,153)19.9%(26,105)D+60.2R+0.5
200677.6%(82,025)16.8%(17,788)D+60.7D+21.8
200065.2%(79,421)26.4%(32,077)D+38.9R+7.5
199470.9%(74,664)24.4%(25,733)D+46.4R+0.2
199271.3%(92,205)24.6%(31,846)D+46.6D+35.3
198854.4%(63,101)43.0%(49,942)D+11.3D+15.6
198245.8%(44,933)50.0%(49,107)R+4.3D+6.4

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

Governor Elections

Governor Results

YearDemocratRepublicanMarginSwing
202280.0%(95,289)20.0%(23,775)D+60.1D+1.1
201879.5%(103,671)20.5%(26,750)D+59.0D+0.3
201479.4%(69,751)20.6%(18,147)D+58.7D+15.4
201070.4%(80,236)27.1%(30,920)D+43.3D+41.4
200647.7%(50,441)45.8%(48,439)D+1.9R+26.5
200256.2%(49,512)27.8%(24,520)D+28.4R+13.6
199868.9%(70,108)26.9%(27,392)D+42.0D+31.9
199453.4%(56,665)43.4%(45,983)D+10.1R+12.4
199059.2%(57,255)36.8%(35,563)D+22.4D+37.7
198641.2%(37,686)56.5%(51,693)R+15.3R+25.7

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

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Source: Official state election returns
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