Alameda County, CA

CA · Presidential Elections 1876–2024

D+53.6
2024 Margin
R+8.6%
2020→2024 Swing
D since 1960
Voting Streak
1.6M
Population

Alameda County, CA (California) voted D+53.6 for Kamala Harris (Democrat) in the 2024 presidential election, with Harris receiving 499,551 votes (74.58%) to 140,789 (21.02%) for Trump.

This represents a R+8.6% swing toward Republicans compared to 2020. Alameda County is classified as a deep Democratic county. Alameda County has voted Democratic in every presidential election since 1960. The county has a population of approximately 1,649,473.

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Quick Stats

2024 ResultD+53.6
2020→2024 SwingR+8.6%
Voting StreakD since 1960
Elections on Record38

Demographics

Population1,649,473
Median Age
39.0(US: 38.7)
College (BA+)
52.2%(US: 35.2%)
Median Income
$129,367(US: $80k)
White (non-Hisp)
28.2%(US: 57.6%)
Hispanic
23.4%(US: 19.1%)
Black
9.8%(US: 12.2%)
Asian
32.1%(US: 5.7%)
Homeownership
54.4%(US: 64.5%)
Poverty Rate
9.2%(US: 12.3%)
Veterans
3.0%(US: 6.2%)
Non-English (CVAP)
37.4%(US: 17.0%)
Source: Census ACS 5-Year (2020-2024)

Community Profile

Religious Composition

Source: Religion Census 2020
Catholic
19.2%
Evangelical
7.1%(Below Average)
Black Protestant
2.6%
Mainline Protestant
2.0%
LDS/Mormon
1.6%
+ 1 more traditions

Ancestry Groups

Source: Census ACS

Top reported ancestry groups (compared to national average).

Mexican
16.2%(1.5x)
German
5.8%
English
5.5%
Irish
5.4%
Italian
3.0%
American Heritage
1.8%
+ 4 more reported ancestry groups

Age Distribution

Median:39.0 yrs(US: 38.5)
Under 18
19.8%↓
18-29
7.9%↓
30-44
23.8%↑
45-64
33.1%↑
65+
15.4%
National average

Employment by Industry

Census ACS
Professional & TechnicalRegional Strength
21.1%(1.8x US)
Manufacturing
10.1%
Retail Trade
8.1%(0.8x US)
Educational Services
7.4%(0.9x US)
Construction
5.4%(0.8x US)
Healthcare & Social Services
4.5%
National average

Presidential Elections

Presidential Results

YearDemocratRepublicanMarginSwing
202474.6%(499,551)21.0%(140,789)D+53.6R+8.6
202079.8%(617,659)17.6%(136,309)D+62.2R+1.3
201678.1%(514,842)14.5%(95,922)D+63.5D+3.0
201278.7%(469,684)18.1%(108,182)D+60.6D+1.2
200878.5%(489,106)19.2%(119,555)D+59.3D+7.4
200475.2%(422,585)23.3%(130,911)D+51.9D+6.7
200069.4%(342,889)24.1%(119,279)D+45.2D+2.5
199665.8%(303,903)23.1%(106,581)D+42.7D+0.3
199263.0%(334,224)20.6%(109,292)D+42.4D+11.6
198864.8%(310,283)34.0%(162,815)D+30.8D+12.1

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

Presidential Margin Trend

Alameda County, CA • 1876–2024

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

Senate Elections

Senate Results

YearDemocratRepublicanMarginSwing
202476.8%(489,039)23.2%(147,721)D+53.6R+44.9
201898.5%(537,354)0.0%(0)D+98.5R+5.1
2016103.7%(609,184)0.0%(0)D+103.7D+39.8
201281.9%(468,456)18.1%(103,313)D+63.9D+4.3
200676.1%(307,495)16.5%(66,550)D+59.6D+14.5
200067.7%(328,355)22.6%(109,517)D+45.1D+2.0
199468.3%(271,456)25.2%(100,120)D+43.1R+7.5
199272.6%(374,675)21.9%(113,223)D+50.6D+27.2
198860.2%(283,560)36.8%(173,313)D+23.4D+2.1
198258.7%(226,780)37.3%(144,195)D+21.4D+1.2

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

Governor Elections

Governor Results

YearDemocratRepublicanMarginSwing
202279.3%(387,046)20.7%(100,923)D+58.6R+2.5
201880.6%(462,558)19.4%(111,677)D+61.1R+3.2
201482.2%(293,081)17.8%(63,593)D+64.3D+13.1
201073.8%(340,190)22.5%(103,947)D+51.2D+31.3
200656.5%(229,217)36.6%(148,322)D+20.0R+20.7
200262.8%(216,058)22.2%(76,407)D+40.6R+10.3
199873.5%(282,297)22.6%(86,745)D+50.9D+27.7
199459.8%(240,490)36.6%(147,238)D+23.2R+9.3
199064.1%(237,345)31.6%(117,107)D+32.5D+30.6
198649.7%(181,445)47.8%(174,555)D+1.9R+19.4

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

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