- Lead
- 191,645
- Total
- 523,339
- vs nation
- D+38.1
California 24th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 242,156
- Total
- 580,489
- vs nation
- D+37.3
- Lead
- 213,390
- Total
- 486,373
- vs nation
- D+41.8
- Lead
- 161,233
- Total
- 452,841
- vs nation
- D+31.7
- Lead
- 160,930
- Total
- 472,710
- vs nation
- D+26.8
- Lead
- 89,073
- Total
- 435,035
- vs nation
- D+22.9
- Lead
- 94,535
- Total
- 385,647
- vs nation
- D+24.0
- Lead
- 76,593
- Total
- 345,838
- vs nation
- D+13.6
Key facts
- 2024 presidential margin
- D+36.6MIT Election Lab
- Population
- 1,031,9612024 5-year
- Population density
- 3,151 / sq mi2024 5-year · TIGER/Line
- Land area
- 328 sq miTIGER/Line
- Median household income
- $121,8792024 5-year
- White (non-Hispanic)
- 57.4%2024 5-year
- Black
- 3.8%2024 5-year
- Hispanic / Latino
- 15.6%2024 5-year
- Peak Democratic margin
- D+43.9 in 2016MIT Election Lab
- Peak Republican margin
- R+61.8 in 1924MIT Election Lab
- Most similar
- State Senate District 27, CA · twin score 94.4
presidential history
Party record book
California 24th State Senate 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
69.9%
405,592 votes · D+41.7 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 68.9%
Republican
Warren G. Harding1920
73.1%
28,173 votes · R+54.1 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 72.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
405,592votes
69.9% of the vote · D+41.7 · modeled estimate
Runner-up · Kamala Harris, 2024 · 349,243 votes
Republican
Richard Nixon1972
245,263votes
58.5% of the vote · R+19.9 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 225,129 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
+41.8pts D vs U.S.
Place D+43.9 · U.S. D+2.1 · modeled estimate
Runner-up · Kamala Harris, 2024 · +38.1 pts
Republican
Calvin Coolidge1924
+36.6pts R vs U.S.
Place R+61.8 · U.S. R+25.2 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · +31.6 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.
Hispanic or Latino residents were 48.4% of this district's roughly 786,000 people in the 2024 ACS 5-year, and 44.9% spoke only English at home. Its Democratic presidential margin was D+36.6 in 2024 and D+34.1 in 2008.
Across the recorded series it reached a Democratic high of 43.9 points in 2016 and a Republican high of 61.8 points in 1924. Between 2020 and 2024 the district moved 5.1 points toward the Republican candidate; the 2024 margin was 36.6 points.
A population of 1,031,961, a 57% non-Hispanic-white share, and a median household income of $121,879 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 27 and State Senate District 9.
The state-senate 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 24th State Senate District. Akashic. https://akashic.app/sld-upper/06024/. Accessed May 20, 2026. License: CC BY 4.0.