- Lead
- 39,330
- Total
- 197,926
- vs nation
- R+18.4
California 34th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 33,287
- Total
- 219,227
- vs nation
- R+19.6
- Lead
- 38,268
- Total
- 177,271
- vs nation
- R+23.7
- Lead
- 46,651
- Total
- 165,719
- vs nation
- R+32.0
- Lead
- 51,092
- Total
- 173,902
- vs nation
- R+36.7
- Lead
- 73,159
- Total
- 166,081
- vs nation
- R+41.6
- Lead
- 51,452
- Total
- 139,537
- vs nation
- R+37.4
- Lead
- 41,605
- Total
- 126,238
- vs nation
- R+41.5
Key facts
- 2024 presidential margin
- R+19.9MIT Election Lab
- Population
- 523,8082024 5-year
- Population density
- 29 / sq mi2024 5-year · TIGER/Line
- Land area
- 18,296 sq miTIGER/Line
- Median household income
- $79,2982024 5-year
- White (non-Hispanic)
- 43.8%2024 5-year
- Black
- 9.4%2024 5-year
- Hispanic / Latino
- 36.4%2024 5-year
- Peak Democratic margin
- D+17.1 in 1912MIT Election Lab
- Peak Republican margin
- R+83.0 in 1920MIT Election Lab
- Most similar
- State House District 25, AZ · twin score 91.4
presidential history
Party record book
California 34th 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
Joe Biden2020
41.2%
90,373 votes · R+15.2 · modeled estimate
Runner-up · Kamala Harris, 2024 · 38.7%
Republican
Herbert Hoover1928
90.7%
27,430 votes · R+82.0 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 89.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
90,373votes
41.2% of the vote · R+15.2 · modeled estimate
Runner-up · Kamala Harris, 2024 · 76,644 votes
Republican
Donald Trump2020
123,660votes
56.4% of the vote · R+15.2 · modeled estimate
Runner-up · George W. Bush, 2004 · 119,120 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
Woodrow Wilson1912
−2.5pts D vs U.S.
Place D+17.1 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Kamala Harris, 2024 · −18.4 pts
Republican
Benjamin Harrison1892
+72.5pts R vs U.S.
Place R+70.8 · U.S. D+1.7 · modeled estimate
Runner-up · William McKinley, 1896 · +67.4 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.
Assembly District 34 recorded a 19.9-point Republican presidential margin in 2024, making it an outlier in a state where Democrats dominate most legislative chambers. Its electorate reflects the inland Southern California communities that have trended consistently rightward over the past decade.
Across the recorded series it reached a Democratic high of 17.1 points in 1912 and a Republican high of 83.0 points in 1920. Between 2020 and 2024 the district moved 4.7 points toward the Republican candidate; the 2024 margin was 19.9 points.
A population of 523,808, a 44% non-Hispanic-white share, and a median household income of $79,298 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 25 and Assembly 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.
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 34th State House District. Akashic. https://akashic.app/sld-lower/06034/. Accessed May 20, 2026. License: CC BY 4.0.