How did CA-03, California vote in the 2024 presidential election?

CA-03, California voted Democratic in 2024 with a margin of D+10.2. The Democratic candidate received 390,360 votes and the Republican candidate received 315,793 out of 731,552 total votes cast, a 3.8-point shift toward Republicans from 2020.

What is CA-03, California's political history?

CA-03, California has 5 presidential elections on record, spanning 2008 to 2024. It has voted Democratic in every presidential election since 2008. The largest single-election swing was 6.3 points in 2020.

What are the demographics of CA-03, California?

CA-03, California has a population of 270,849 according to the 2020 Census. The racial composition is 76.9% non-Hispanic white, 12.8% Hispanic.

Which places are most similar to CA-03, California?

Based on demographic and electoral similarity analysis, the three most similar congressional districts to CA-03, California are NY-19, NH-01, OR-04. Similarity is computed using a vector embedding of demographic, economic, and electoral characteristics.

California's 3rd Congressional District

California

Leans Democratic — presidential lean D+10.2 in 2024

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POPULATION
271K
PRES MARGIN
D+10.2
2024
LEAN
Likely D

Place Story

What defines California's 3rd Congressional District

Methodology

Leans Democratic since 2008
- Likely D
- 5 straight D wins
Demographically distinctive: 77% non-Hispanic white (+20pp vs national)
- 77% non-Hispanic white (+20pp vs national)
Biggest swing: D+6.3 in 2020
- 2016 → 2020

District in State Context

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2024 / 2020 precinct vintages

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Peer discovery

Similar districts

Districts with comparable demographics and electoral dynamics.

TBD_5

NY-19

New York

Similarity91%

+7 more

NH-01 and others

Similarity0%

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“How has California's 3rd Congressional District voted in House elections since 2000?”

Race & Ancestry

Who Lives Here

A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.

CA-03Census ACS 2024Ancestry detail available

Census race profile

Major Census race and ethnicity groups shown as a share of total population.

Expand rows for ancestry detail

White (Non-Hispanic) 76.9%Hispanic 12.8%Multiracial 5.8%Asian 2.6%Native American 1.0%Black 0.6%

Group	CA-03	State	National
▶White (Non-Hispanic)(13)	76.9%	33.8%	57.4%
▶Hispanic / Latino(20)	12.8%	40.2%	19.3%
Multiracial / Other	5.8%	3.5%	4.0%
▶Asian(6)	2.6%	15.5%	6.0%
▶Middle Eastern / North African(11)	2.0%	—	0.9%
▶Native American / Alaska Native(3)	1.0%	1.3%	0.9%
▶Black / African American(13)	0.6%	5.4%	12.2%
▶Native Hawaiian / Pacific Islander(6)	0.1%	0.4%	0.2%

Method notes

Census treats race and Hispanic/Latino origin as separate questions. Race categories other than Hispanic reflect total populations (small Hispanic overlap in Black, Asian, AIAN, NHPI). “Multiracial / Other” is derived as a non-overlapping remainder.

Click rows to expand ancestry detail. Ancestry from ACS B04006, B03001, B02020, B02016. Totals may differ from race — individuals can report multiple ancestries.

California's 3rd Congressional District

District in State Context

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NY-19

+7 more

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Who Lives Here

Demographics

Turnout in CA-03

How competitive is CA-03?

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