- Lead
- 47,930
- Total
- 272,815
- vs nation
- D+19.0
California 52nd Congressional District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 102,211
- Total
- 306,276
- vs nation
- D+28.9
- Lead
- 102,746
- Total
- 248,048
- vs nation
- D+39.3
- Lead
- 70,076
- Total
- 220,187
- vs nation
- D+28.0
- Lead
- 78,527
- Total
- 228,977
- vs nation
- D+27.0
- Lead
- 39,093
- Total
- 202,646
- vs nation
- D+21.7
- Lead
- 35,180
- Total
- 171,519
- vs nation
- D+20.0
- Lead
- 34,167
- Total
- 158,220
- vs nation
- D+13.1
Key facts
- 2024 presidential margin
- D+17.6MIT Election Lab
- Population
- 759,1712024 5-year
- Population density
- 1,098 / sq mi2024 5-year · TIGER/Line
- Land area
- 691 sq miTIGER/Line
- Median household income
- $88,5672024 5-year
- White (non-Hispanic)
- 15.4%2024 5-year
- Black
- 6.8%2024 5-year
- Hispanic / Latino
- 60.4%2024 5-year
- Peak Democratic margin
- D+54.8 in 1912MIT Election Lab
- Peak Republican margin
- R+31.6 in 1924MIT Election Lab
- Most similar
- Congressional District 31, CA · twin score 90.8
presidential history
Party record book
California 52nd 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
Franklin D. Roosevelt1936
75.0%
14,731 votes · D+51.1 · modeled estimate
Runner-up · Samuel J. Tilden, 1876 · 72.6%
Republican
Herbert Hoover1928
54.0%
6,336 votes · R+9.4 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 52.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
201,048votes
65.6% of the vote · D+33.4 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 167,157 votes
Republican
Donald Trump2024
108,860votes
39.9% of the vote · D+17.6 · modeled estimate
Runner-up · Donald Trump, 2020 · 98,837 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
+39.3pts D vs U.S.
Place D+41.4 · U.S. D+2.1 · modeled estimate
Runner-up · Woodrow Wilson, 1912 · +35.3 pts
Republican
Calvin Coolidge1924
+6.4pts R vs U.S.
Place R+31.6 · U.S. R+25.2 · a third-party candidate carried the Place · modeled estimate
Runner-up · Ronald Reagan, 1980 · +2.6 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 52nd district covers central San Diego and UC San Diego's La Jolla campus, producing consistent Democratic margins above 25 points driven by a young, highly educated, and diverse resident base.
Across the recorded series it reached a Democratic high of 54.8 points in 1912 and a Republican high of 31.6 points in 1924. Between 2020 and 2024 the district moved 15.8 points toward the Republican candidate; the 2024 margin was 17.6 points.
A population of 759,171, a 15% non-Hispanic-white share, and a median household income of $88,567 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 31 and Congressional District 18.
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 52nd Congressional District. Akashic. https://akashic.app/cd/0652/. Accessed May 20, 2026. License: CC BY 4.0.