California 1st State House District
Akashic| Donald Trump ✓Republican | 56.5% | 149,878 |
|---|---|---|
| Kamala HarrisDemocratic | 40.5% | 107,413 |
| Robert F. Kennedy Jr.American Independent | 2.9% | 7,770 |
County-level results (11 counties) — table
| County | Winner | Margin |
|---|---|---|
| Alpine County, CA | Democratic | D+32.0 |
| Amador County, CA | Republican | R+27.8 |
| El Dorado County, CA | Republican | R+12.0 |
| Lassen County, CA | Republican | R+54.0 |
| Modoc County, CA | Republican | R+46.6 |
| Nevada County, CA | Democratic | D+12.2 |
| Placer County, CA | Republican | R+8.5 |
| Plumas County, CA | Republican | R+16.9 |
| Shasta County, CA | Republican | R+36.4 |
| Sierra County, CA | Republican | R+24.2 |
| Siskiyou County, CA | Republican | R+19.2 |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 40.5%Harris107,413 | 56.5%Trump149,878 | 2.9%Kennedy7,770 | 265,061 | ||
| R | 42.5%Biden119,076 | 55.1%Trump154,479 | 2.3%Jorgensen6,554 | 280,109 | ||
| R | 37.0%Clinton86,907 | 55.8%Trump130,836 | 7.2%Johnson16,912 | 234,655 | ||
| R | 41.9%Obama92,471 | 58.1%Romney128,143 | 0.0% | 220,614 | ||
| R | 44.2%Obama105,603 | 55.1%McCain131,614 | 0.8%Nader1,859 | 239,076 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | −10.9% |
| 2012 | −16.2% |
| 2016 | −18.7% |
| 2020 | −12.6% |
| 2024 | −16.0% |
State legislative officeholder from OpenStates nightly current-legislator data.
Anchored in the North Coast and parts of the Bay Area, Assembly District 1 has recorded presidential margins exceeding 50 points Democratic, reflecting a highly educated, environmentally oriented electorate with relatively low population density outside urban cores.
Across the recorded series it reached a Republican high of 18.7 points in 2016. Between 2020 and 2024 the district moved 3.4 points toward the Republican candidate; the 2024 margin was 16.0 points.
A population of 512,275, a 79% non-Hispanic-white share, and a median household income of $77,730 describe the district. The district's voting pattern over the last decade is most similar to that of Assembly District 5 and State House District 32.
The state-house 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 →
California 1st State House District. Akashic. https://akashic.app/sld-lower/06001/. Accessed May 20, 2026. License: CC BY 4.0.