- Lead
- 43,064
- Total
- 145,250
- vs nation
- D+31.1
California 43rd State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 87,461
- Total
- 173,269
- vs nation
- D+46.0
- Lead
- 84,319
- Total
- 135,551
- vs nation
- D+60.1
- Lead
- 70,188
- Total
- 124,174
- vs nation
- D+52.7
- Lead
- 71,642
- Total
- 128,582
- vs nation
- D+48.4
- Lead
- 51,476
- Total
- 114,769
- vs nation
- D+47.3
- Lead
- 48,831
- Total
- 102,849
- vs nation
- D+47.0
- Lead
- 40,299
- Total
- 92,087
- vs nation
- D+35.2
Key facts
- 2024 presidential margin
- D+29.6MIT Election Lab
- Population
- 506,2482024 5-year
- Population density
- 9,661 / sq mi2024 5-year · TIGER/Line
- Land area
- 52.4 sq miTIGER/Line
- Median household income
- $75,7772024 5-year
- White (non-Hispanic)
- 15.5%2024 5-year
- Black
- 3.1%2024 5-year
- Hispanic / Latino
- 71.9%2024 5-year
- Peak Democratic margin
- D+62.2 in 2016MIT Election Lab
- Peak Republican margin
- R+47.7 in 1924MIT Election Lab
- Most similar
- Assembly District 62, CA · twin score 99.0
presidential history
Party record book
California 43rd State House 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
Hillary Clinton2016
78.3%
106,131 votes · D+62.2 · modeled estimate
Runner-up · Barack Obama, 2012 · 76.9%
Republican
Herbert Hoover1928
60.1%
14,414 votes · R+22.4 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 59.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
128,374votes
74.1% of the vote · D+50.5 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 106,131 votes
Republican
Donald Trump2024
48,878votes
33.7% of the vote · D+29.6 · modeled estimate
Runner-up · Richard Nixon, 1972 · 43,871 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
+60.1pts D vs U.S.
Place D+62.2 · U.S. D+2.1 · modeled estimate
Runner-up · Barack Obama, 2012 · +52.7 pts
Republican
Calvin Coolidge1924
+22.6pts R vs U.S.
Place R+47.7 · U.S. R+25.2 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · +10.4 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2018 | D | 78.2%111,813 | 21.8%31,141 | 142,954 |
California 43rd State House District sits in the Pacific Coast. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 62.2 points in 2016 and a Republican high of 47.7 points in 1924. Between 2020 and 2024 the district moved 20.8 points toward the Republican candidate; the 2024 margin was 29.6 points.
A population of 506,248, a 16% non-Hispanic-white share, and a median household income of $75,777 describe the district. The district's voting pattern over the last decade is most similar to that of Assembly District 62 and Assembly District 65.
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.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
California 43rd State House District. Akashic. https://akashic.app/sld-lower/06043/. Accessed May 20, 2026. License: CC BY 4.0.