Akashic
1876–2024
Elections / 2018 · Senate · CA

The Democratic candidate won California's Senate seat D+100.0.

California, 2018. Candidate results and statewide totals below.

California — 2018 Senate result
Source: MIT Election Data + Science Lab, 1976–2024 Senate returns (party-classified by literal ballot party).
Democratic (D)
11,113,364
100.0%
Republican (R)
0
0.0%
All others
0
0.0%
Margin
D+100.0
Candidates
Statewide candidate totals — MIT Election Data + Science Lab, 2018 Senate returns.
CandidatePartyVotesShare
Dianne FeinsteinDDemocrat6,019,42254.2%
Kevin De LeonDDemocrat5,093,94245.8%
2018 presidential election
California, 2018
DemocraticD+100.0
2018 presidential margin by county for California — 2018 US Senate electionA map of the constituent counties of California — 2018 US Senate election, each outlined and filled by its 2018 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), seated within the faint outlines of the surrounding states.LOS ANGELES, CA · D+100.0SAN DIEGO, CA · D+100.0ORANGE, CA · D+100.0SANTA CLARA, CA · D+100.0RIVERSIDE, CA · D+100.0ALAMEDA, CA · D+100.0SAN BERNARDINO, CA · D+100.0SACRAMENTO, CA · D+100.0CONTRA COSTA, CA · D+100.0SAN FRANCISCO, CA · D+100.0SAN MATEO, CA · D+100.0VENTURA, CA · D+100.0FRESNO, CA · D+100.0SONOMA, CA · D+100.0SAN JOAQUIN, CA · D+100.0KERN, CA · D+100.0PLACER, CA · D+100.0SANTA BARBARA, CA · D+100.0STANISLAUS, CA · D+100.0SOLANO, CA · D+100.0MARIN, CA · D+100.0SANTA CRUZ, CA · D+100.0SAN LUIS OBISPO, CA · D+100.0MONTEREY, CA · D+100.0TULARE, CA · D+100.0BUTTE, CA · D+100.0EL DORADO, CA · D+100.0YOLO, CA · D+100.0SHASTA, CA · D+100.0MERCED, CA · D+100.0NAPA, CA · D+100.0HUMBOLDT, CA · D+100.0NEVADA, CA · D+100.0MADERA, CA · D+100.0MENDOCINO, CA · D+100.0IMPERIAL, CA · D+100.0KINGS, CA · D+100.0SUTTER, CA · D+100.0TUOLUMNE, CA · D+100.0LAKE, CA · D+100.0SAN BENITO, CA · D+100.0CALAVERAS, CA · D+100.0TEHAMA, CA · D+100.0YUBA, CA · D+100.0SISKIYOU, CA · D+100.0AMADOR, CA · D+100.0PLUMAS, CA · D+100.0DEL NORTE, CA · D+100.0LASSEN, CA · D+100.0GLENN, CA · D+100.0MARIPOSA, CA · D+100.0INYO, CA · D+100.0COLUSA, CA · D+100.0TRINITY, CA · D+100.0MONO, CA · D+100.0MODOC, CA · D+100.0SIERRA, CA · D+100.0ALPINE, CA · D+100.0
How it voted
Share of the 2018 vote
Democratic ✓Democratic100.0%11,113,364
RepublicanRepublican0.0%0
OtherAll other candidates0.0%0
D+60
R+60
58 counties, each filled by 2018 D-vs-R margin. Hover any county for its result.
California's Senate margins
Every contest in our store, 1976–2024
California's Senate marginsDemocratic-minus-Republican presidential margin from 1976 to 2024. Most recent: +17.7% in 2024.flipped D · 1992+17.7%DR19762024
California's Senate margins
YearMargin (D minus R)
1976−3.3%
1980+19.4%
1982−6.8%
1986+1.4%
1988−8.8%
1992+4.9%
1994+1.9%
1998+10.0%
2000+19.3%
2004+19.9%
2006+24.4%
2010+10.0%
2012+25.0%
2016+100.0%
2018+100.0%
2022+22.1%
2024+17.7%