Safe Democratic — flipped 1 time in 25 elections
118th Congress boundaries — Historical results before 2022 were contested under prior district lines.
Explore this district's political evolution with the Historian
“How has California's 18th Congressional District voted in House elections since 2000?”30 elections analyzed
AI-generated analysis of voting patterns and trends in CA-18.
Unlock with Pro$33/moWho lives in California's 18th Congressional District? 753,842 residents as of the 2020 Census.
CA-18 — Census ACS 2024
| Group | CA-18 | State | National |
|---|---|---|---|
▶Hispanic / Latino(20) | 65.5% | 40.2% | 19.3% |
▶White (Non-Hispanic)(13) | 17.5% | 33.8% | 57.4% |
▶Asian(6) | 11.8% | 15.5% | 6.0% |
▶Black(11) | 2.1% | 5.4% | 12.2% |
▶Native American / Alaska Native(2) | 1.6% | 1.3% | 0.9% |
Multiracial / Other | 1.5% | 3.5% | 4.0% |
▶Middle Eastern / North African(11) | 0.8% | — | 0.9% |
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.
MENA estimated from ancestry reporting — Census does not have a separate MENA race category. Not shown in bar (overlaps with other race groups).
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