Solano County, CA

CA · Presidential Elections 1876–2024

D+22.9
2024 Margin
R+7.2%
2020→2024 Swing
D since 1988
Voting Streak
452K
Population

Solano County, CA (California) voted D+22.9 for Kamala Harris (Democrat) in the 2024 presidential election, with Harris receiving 113,997 votes (59.82%) to 70,345 (36.91%) for Trump.

This represents a R+7.2% swing toward Republicans compared to 2020. Solano County is classified as a solid Democratic county. Solano County has voted Democratic in every presidential election since 1988. The county has a population of approximately 451,918.

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Quick Stats

2024 ResultD+22.9
2020→2024 SwingR+7.2%
Voting StreakD since 1988
Elections on Record38

Demographics

Population451,918
Median Age
39.2(US: 38.7)
College (BA+)
28.8%(US: 35.2%)
Median Income
$100,401(US: $80k)
White (non-Hisp)
34.3%(US: 57.6%)
Hispanic
29.6%(US: 19.1%)
Black
13.7%(US: 12.2%)
Asian
15.7%(US: 5.7%)
Homeownership
63.0%(US: 64.5%)
Poverty Rate
10.0%(US: 12.3%)
Veterans
8.2%(US: 6.2%)
Non-English (CVAP)
24.3%(US: 17.0%)
Source: Census ACS 5-Year (2020-2024)

Community Profile

Religious Composition

Source: Religion Census 2020
Catholic
16.0%
Evangelical
9.3%(Below Average)
LDS/Mormon
2.3%
Black Protestant
1.7%
Mainline Protestant
1.1%

Ancestry Groups

Source: Census ACS

Top reported ancestry groups (compared to national average).

Mexican
22.2%Above Average(2.0x)
German
6.8%
Irish
6.3%
English
6.3%
Italian
3.6%
American Heritage
2.4%
+ 3 more reported ancestry groups

Age Distribution

Median:39.2 yrs(US: 38.5)
Under 18
21.9%
18-29
8.3%↓
30-44
21.0%
45-64
31.4%↑
65+
17.4%
National average

Employment by Industry

Census ACS
Retail Trade
11.5%
Professional & Technical
11.4%
Educational Services
8.7%
Manufacturing
8.6%(0.9x US)
Construction
8.2%(1.2x US)
Healthcare & Social Services
5.1%(1.1x US)
National average
+ 1 more sectors

Presidential Elections

Presidential Results

YearDemocratRepublicanMarginSwing
202459.8%(113,997)36.9%(70,345)D+22.9R+7.2
202063.6%(131,639)33.5%(69,306)D+30.1D+0.1
201660.9%(102,360)30.9%(51,920)D+30.0D+0.8
201263.3%(96,783)34.1%(52,092)D+29.2D+0.7
200863.2%(102,095)34.7%(56,035)D+28.5D+13.2
200457.2%(85,096)41.9%(62,301)D+15.3R+2.5
200057.0%(75,116)39.2%(51,604)D+17.8R+2.5
199655.1%(64,644)34.7%(40,742)D+20.4D+1.1
199248.7%(64,320)29.4%(38,883)D+19.3D+15.5
198851.2%(54,344)47.4%(50,314)D+3.8D+14.0

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

Presidential Margin Trend

Solano County, CA • 1876–2024

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

Senate Elections

Senate Results

YearDemocratRepublicanMarginSwing
202461.0%(113,204)39.0%(72,404)D+22.0R+74.7
201896.7%(128,260)0.0%(0)D+96.7D+1.6
201695.1%(139,423)0.0%(0)D+95.1D+63.1
201266.0%(98,251)34.0%(50,634)D+32.0D+1.0
200663.1%(64,828)32.1%(32,956)D+31.0D+4.4
200060.0%(74,414)33.4%(41,449)D+26.6D+16.6
199451.0%(49,920)41.0%(40,158)D+10.0R+17.7
199260.2%(77,739)32.5%(41,970)D+27.7D+27.6
198848.4%(47,420)48.2%(47,288)D+0.1D+5.2
198245.0%(32,967)50.1%(36,684)R+5.1R+11.6

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

Governor Elections

Governor Results

YearDemocratRepublicanMarginSwing
202259.5%(77,769)40.5%(52,850)D+19.1R+3.5
201861.3%(89,694)38.7%(56,627)D+22.6R+6.5
201464.6%(57,874)35.4%(31,754)D+29.1D+6.9
201058.8%(69,597)36.6%(43,323)D+22.2D+33.4
200641.9%(43,501)53.1%(55,130)R+11.2R+25.7
200252.4%(46,385)37.9%(33,516)D+14.5R+14.5
199862.8%(63,791)33.8%(34,288)D+29.1D+37.2
199443.7%(43,170)51.9%(51,265)R+8.2R+17.7
199052.0%(44,969)42.5%(36,755)D+9.5D+39.0
198634.0%(25,382)63.5%(47,396)R+29.5R+25.5

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

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