- Lead
- 96,200
- Total
- 389,873
- vs nation
- D+26.1
California 2nd Congressional District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 118,819
- Total
- 417,661
- vs nation
- D+24.0
- Lead
- 88,271
- Total
- 368,831
- vs nation
- D+21.8
- Lead
- 80,500
- Total
- 351,510
- vs nation
- D+19.0
- Lead
- 101,356
- Total
- 374,851
- vs nation
- D+19.8
- Lead
- 60,638
- Total
- 365,561
- vs nation
- D+19.0
- Lead
- 25,578
- Total
- 323,539
- vs nation
- D+7.4
- Lead
- 35,007
- Total
- 309,386
- vs nation
- D+2.8
Key facts
- 2024 presidential margin
- D+24.7MIT Election Lab
- Population
- 764,9022024 5-year
- Population density
- 29 / sq mi2024 5-year · TIGER/Line
- Land area
- 26,229 sq miTIGER/Line
- Median household income
- $90,0032024 5-year
- White (non-Hispanic)
- 68.3%2024 5-year
- Black
- 1.5%2024 5-year
- Hispanic / Latino
- 14.9%2024 5-year
- Peak Democratic margin
- D+42.8 in 1912MIT Election Lab
- Peak Republican margin
- R+40.8 in 1924MIT Election Lab
- Most similar
- Congressional District 1, OR · twin score 80.2
presidential history
Party record book
California 2nd 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
66.0%
45,982 votes · D+33.2 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 64.4%
Republican
Warren G. Harding1920
65.3%
21,518 votes · R+39.8 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 63.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
263,366votes
63.1% of the vote · D+28.4 · modeled estimate
Runner-up · Kamala Harris, 2024 · 236,950 votes
Republican
Ronald Reagan1984
152,744votes
52.8% of the vote · R+7.1 · modeled estimate
Runner-up · George W. Bush, 2004 · 149,009 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
Kamala Harris2024
+26.1pts D vs U.S.
Place D+24.7 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +24.0 pts
Republican
Theodore Roosevelt1904
+15.9pts R vs U.S.
Place R+35.6 · U.S. R+19.7 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · +15.6 pts
Current officeholders
Federal officeholders only. State and local officeholders are planned for the next data pass.
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.
CA-2 spans the North Coast and parts of the Bay Area, where presidential margins have exceeded 40 points in recent cycles, making it among the most consistently one-sided congressional districts in the country.
Across the recorded series it reached a Democratic high of 42.8 points in 1912 and a Republican high of 40.8 points in 1924. Between 2020 and 2024 the district moved 3.8 points toward the Republican candidate; the 2024 margin was 24.7 points.
A population of 764,902, a 68% non-Hispanic-white share, and a median household income of $90,003 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 1 and Congressional District 3.
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 2nd Congressional District. Akashic. https://akashic.app/cd/0602/. Accessed May 20, 2026. License: CC BY 4.0.