- Lead
- 142,057
- Total
- 235,182
- vs nation
- D+61.9
California 37th Congressional District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 204,830
- Total
- 279,023
- vs nation
- D+69.0
- Lead
- 188,688
- Total
- 233,492
- vs nation
- D+78.7
- Lead
- 165,628
- Total
- 209,863
- vs nation
- D+75.1
- Lead
- 170,194
- Total
- 216,553
- vs nation
- D+71.3
- Lead
- 135,576
- Total
- 185,558
- vs nation
- D+75.5
- Lead
- 123,959
- Total
- 167,948
- vs nation
- D+73.3
- Lead
- 102,719
- Total
- 149,010
- vs nation
- D+60.4
Key facts
- 2024 presidential margin
- D+60.4MIT Election Lab
- Population
- 755,3172024 5-year
- Population density
- 14,305 / sq mi2024 5-year · TIGER/Line
- Land area
- 52.8 sq miTIGER/Line
- Median household income
- $70,3272024 5-year
- White (non-Hispanic)
- 13.2%2024 5-year
- Black
- 22.1%2024 5-year
- Hispanic / Latino
- 54.0%2024 5-year
- Peak Democratic margin
- D+90.7 in 1876MIT Election Lab
- Peak Republican margin
- R+19.2 in 1924MIT Election Lab
- Most similar
- Congressional District 43, CA · twin score 99.2
presidential history
Party record book
California 37th Congressional 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
Samuel J. Tilden1876
95.3%
286 votes · D+90.7 · modeled estimate
Runner-up · Winfield S. Hancock, 1880 · 90.5%
Republican
Warren G. Harding1920
40.4%
4,160 votes · D+7.2 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 38.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
239,305votes
85.8% of the vote · D+73.4 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 205,703 votes
Republican
Donald Trump2024
42,950votes
18.3% of the vote · D+60.4 · modeled estimate
Runner-up · Donald Trump, 2020 · 34,475 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
+78.7pts D vs U.S.
Place D+80.8 · U.S. D+2.1 · modeled estimate
Runner-up · John Kerry, 2004 · +75.5 pts
Republican
Calvin Coolidge1924
−6.0pts R vs U.S.
Place R+19.2 · U.S. R+25.2 · a third-party candidate carried the Place · modeled estimate
Runner-up · William H. Taft, 1912 · −24.4 pts
Current officeholders
Federal officeholders only. State and local officeholders are planned for the next data pass.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
California's 37th district, anchored in south-central Los Angeles, recorded a D+60.4 presidential margin in 2024, making it among the most heavily one-sided congressional districts in the country. Turnout patterns and demographic density here draw consistent academic interest.
Across the recorded series it reached a Democratic high of 90.7 points in 1876 and a Republican high of 19.2 points in 1924. Between 2020 and 2024 the district moved 13.0 points toward the Republican candidate; the 2024 margin was 60.4 points.
A population of 755,317, a 13% non-Hispanic-white share, and a median household income of $70,327 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 43 and Congressional District 44.
The congressional 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 37th Congressional District. Akashic. https://akashic.app/cd/0637/. Accessed May 20, 2026. License: CC BY 4.0.