- Lead
- 15,921
- Total
- 164,232
- vs nation
- D+11.2
California 50th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 46,916
- Total
- 185,641
- vs nation
- D+20.8
- Lead
- 41,836
- Total
- 142,755
- vs nation
- D+27.2
- Lead
- 34,027
- Total
- 126,104
- vs nation
- D+23.1
- Lead
- 34,053
- Total
- 130,954
- vs nation
- D+18.7
- Lead
- 9,503
- Total
- 108,635
- vs nation
- D+11.2
- Lead
- 17,747
- Total
- 96,961
- vs nation
- D+17.8
- Lead
- 16,610
- Total
- 88,705
- vs nation
- D+10.2
Key facts
- 2024 presidential margin
- D+9.7MIT Election Lab
- Population
- 485,5142024 5-year
- Population density
- 4,083 / sq mi2024 5-year · TIGER/Line
- Land area
- 119 sq miTIGER/Line
- Median household income
- $92,0482024 5-year
- White (non-Hispanic)
- 19.3%2024 5-year
- Black
- 7.6%2024 5-year
- Hispanic / Latino
- 59.6%2024 5-year
- Peak Democratic margin
- D+41.0 in 1912MIT Election Lab
- Peak Republican margin
- R+33.6 in 1924MIT Election Lab
- Most similar
- Assembly District 58, CA · twin score 98.4
presidential history
Party record book
California 50th 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
Franklin D. Roosevelt1936
68.2%
8,857 votes · D+38.5 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 67.0%
Republican
Herbert Hoover1928
63.7%
5,087 votes · R+30.1 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 54.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
114,210votes
61.5% of the vote · D+25.3 · modeled estimate
Runner-up · Kamala Harris, 2024 · 87,658 votes
Republican
Donald Trump2024
71,737votes
43.7% of the vote · D+9.7 · modeled estimate
Runner-up · Donald Trump, 2020 · 67,294 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
+27.2pts D vs U.S.
Place D+29.3 · U.S. D+2.1 · modeled estimate
Runner-up · Barack Obama, 2012 · +23.1 pts
Republican
Herbert Hoover1928
+12.7pts R vs U.S.
Place R+30.1 · U.S. R+17.5 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · +8.4 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.
California's 50th Assembly District sits in a densely populated suburban swath where a D+9.7 presidential margin reflects a competitive lean that makes it a bellwether for statewide suburban trends.
Across the recorded series it reached a Democratic high of 41.0 points in 1912 and a Republican high of 33.6 points in 1924. Between 2020 and 2024 the district moved 15.6 points toward the Republican candidate; the 2024 margin was 9.7 points.
A population of 485,514, a 19% non-Hispanic-white share, and a median household income of $92,048 describe the district. The district's voting pattern over the last decade is most similar to that of Assembly District 58 and Assembly District 60.
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 50th State House District. Akashic. https://akashic.app/sld-lower/06050/. Accessed May 20, 2026. License: CC BY 4.0.