California 3rd State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1936
67.8%
31,004 votes · D+36.7 · modeled estimate
Runner-up · Joe Biden, 2020 · 65.5%
Republican
Warren G. Harding1920
67.0%
18,641 votes · R+41.2 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 61.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
322,982votes
65.5% of the vote · D+33.3 · modeled estimate
Runner-up · Kamala Harris, 2024 · 286,276 votes
Republican
Donald Trump2024
161,812votes
35.1% of the vote · D+27.0 · modeled estimate
Runner-up · Donald Trump, 2020 · 158,646 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Hillary Clinton2016
+30.0pts D vs U.S.
Place D+32.0 · U.S. D+2.1 · modeled estimate
Runner-up · Joe Biden, 2020 · +28.9 pts
Republican
Calvin Coolidge1924
+16.7pts R vs U.S.
Place R+41.9 · U.S. R+25.2 · modeled estimate
Runner-up · Warren G. Harding, 1920 · +15.0 pts
current representation
Current officeholders
DChristopher CabaldonState Senate · 3
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 2 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
D
66.7%294,874
33.3%146,897
441,771
2018
D
78.9%256,092
21.1%68,516
324,608
California 3rd State Senate District sits in the Pacific Coast. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 46.6 points in 1912 and a Republican high of 41.9 points in 1924. Between 2020 and 2024 the district moved 6.3 points toward the Republican candidate; the 2024 margin was 27.0 points.
A population of 1,032,082, a 33% non-Hispanic-white share, and a median household income of $104,043 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 8 and State Senate District 39.
Akashic
Political twins — state-senate districts
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
California 3rd State Senate District. Akashic. https://akashic.app/sld-upper/06003/. Accessed May 20, 2026. License: CC BY 4.0.
How did California 3rd State Senate District vote in 2024?
In 2024, California 3rd State Senate District voted Democratic by 27.0 points (D+27.0), carried by the Democratic candidate. Out of 461,016 votes cast, 286,276 went Democratic and 161,812 went Republican.
When did California 3rd State Senate District last vote Republican?
The most recent presidential election in which California 3rd State Senate District voted Republican was 1988.
How many people live in California 3rd State Senate District?
California 3rd State Senate District has a population of 1,032,082 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in California 3rd State Senate District?
Median household income in California 3rd State Senate District is $104,043 — above the national median of $80,734. The California state median is $99,122.
What is the political history of California 3rd State Senate District?
Akashic tracks 38 presidential elections in California 3rd State Senate District from 1876 to 2024. Of those, 18 went Democratic and 19 went Republican.