House districts / California
California's 12th congressional district
CA-12. Redrawn for 2026: the November 2026 election is on new lines. The new district is close to the 2024 one (under 2% of its area differs).
Fundraising
- Lateefah Simon Das of Oct 14, 2026Raised $1.7mSpent $1.3m · Cash $726k
- Jamie Joyce Das of Oct 14, 2026Raised $70kSpent $64k · Cash $5k
2 other candidates have not filed.
Federal Election Commission, candidate totals, public domain.
President in this district
PollCheck calculation from precinct returns on the 2026 lines (method).
| Year | Democrat | Republican | Other | Margin |
|---|---|---|---|---|
| 2024 | Harris 84.5% | Trump 10.6% | 4.8% | D+73.9 |
| 2020 | Biden 89.3% | Trump 8.6% | 2.1% | D+80.7 |
| 2016 | Clinton 87.6% | Trump 6.5% | 5.9% | D+81.2 |
Who lives here
| Measure | This district | US |
|---|---|---|
| People | ||
| Population | 758,548 | |
| Adults (18+) | 621,080 | |
| Citizens, % of adults* | 85.2% | 92.1% |
| Age, % of adults | ||
| 18 to 29* | 21.3% | 20.3% |
| 30 to 44* | 30.6% | 25.9% |
| 45 to 64* | 28.9% | 31.8% |
| 65 and over* | 19.2% | 22.0% |
| Race and Hispanic origin, % of residents | ||
| White | 32.9% | 57.8% |
| Black | 15.3% | 12.1% |
| Hispanic | 23.6% | 18.7% |
| Asian | 20.6% | 5.9% |
| Other or more than one | 7.6% | 5.5% |
| Education and income | ||
| Bachelor's degree or higher, % of 25+* | 54.1% | 35.7% |
| Median household income* | $109,681 | $80,734 |
* Estimated for the 2026 lines from census blocks (ACS 2020-2024). Population, adults and race: 2020 Census, counted on the 2026 lines. The tick marks the US figure.
Winning margin
Results since 1976
| Year | Winner | Share | Runner-up | Share | Margin |
|---|---|---|---|---|---|
| 2024 lines, elections 2022-2024: redrawn for 2026 seat count changed from 53 to 52 after the census | |||||
| 2024 | Lateefah Simon Democrat | 65.4% | Jennifer Tran Democrat | 34.6% | D+30.9 |
| 2022 | Barbara Lee Democrat | 90.5% | Stephen Slauson Republican | 9.5% | D+80.9 |
| Earlier lines, elections 2012-2020 post-census redistricting | |||||
| 2020 | Nancy Pelosi Democrat | 77.6% | Shahid Buttar Democrat | 22.4% | D+55.3 |
| 2018 | Nancy Pelosi Democrat | 86.8% | Lisa Remmer Republican | 13.2% | D+73.6 |
| 2016 | Nancy Pelosi Democrat | 80.9% | Preston Picus Other | 19.1% | D+61.7 |
| 2014 | Nancy Pelosi Democrat | 83.2% | John Dennis Republican | 16.8% | D+66.5 |
| 2012 | Nancy Pelosi Democrat | 85.1% | John Dennis Republican | 14.9% | D+70.2 |
| Earlier lines, elections 2002-2010 seat count changed from 52 to 53 after the census | |||||
| 2010 | Jackie Speier Democrat | 75.6% | Mike Moloney Republican others 2.3% | 22.1% | D+53.5 |
| 2008 | Jackie Speier Democrat | 75.1% | Greg Conlon Republican others 6.4% | 18.5% | D+56.6 |
| 2006 | Tom Lantos Democrat | 76.0% | Mike Moloney Republican | 23.9% | D+52.1 |
| 2004 | Tom Lantos Democrat | 68.0% | Mike Garza Republican others 11.1% | 20.8% | D+47.2 |
| 2002 | Tom Lantos Democrat | 68.1% | Michael Moloney Republican others 7.1% | 24.8% | D+43.4 |
| Earlier lines, elections 1992-2000 seat count changed from 45 to 52 after the census | |||||
| 2000 | Tom Lantos Democrat | 74.5% | Mike Garza Republican others 4.7% | 20.8% | D+53.7 |
| 1998 | Tom Lantos Democrat | 74.0% | Robert H. Evans Republican others 4.9% | 21.1% | D+52.9 |
| 1996 | Tom Lantos Democrat | 71.7% | Storm Jenkins Republican others 4.6% | 23.7% | D+48.0 |
| 1994 | Tom Lantos Democrat | 67.4% | Deborah Wilder Republican | 32.6% | D+34.8 |
| 1992 | Tom Lantos Democrat | 68.8% | Jim Tomlin Republican others 7.9% | 23.3% | D+45.5 |
| Earlier lines, elections 1982-1990 seat count changed from 43 to 45 after the census | |||||
| 1990 | Tom Campbell Republican | 60.9% | Robert Palmer Democrat others 5.5% | 33.7% | R+27.2 |
| 1988 | Tom Campbell Republican | 51.7% | Anna G. Eshoo Democrat others 2.3% | 46.0% | R+5.6 |
| 1986 | Ernest L. Konnyu Republican | 59.5% | Lance T. Weil Democrat others 3.3% | 37.2% | R+22.3 |
| 1984 | Ed Zschau Republican | 61.6% | Martin Carnoy Democrat others 2.3% | 36.0% | R+25.6 |
| 1982 | Ed Zschau Republican | 63.0% | Emmett Lynch Democrat others 3.5% | 33.5% | R+29.5 |
| Earlier lines, elections 1976-1980 | |||||
| 1980 | Paul N. "Pete" McCloskey Jr. Republican | 72.2% | Kirsten Olsen Democrat others 9.2% | 18.6% | R+53.6 |
| 1978 | Paul N. McCloskey Jr. Republican | 73.1% | Kirsten Olsen Democrat others 5.4% | 21.5% | R+51.5 |
| 1976 | Paul N. "Pete" McCloskey, Jr. Republican | 66.2% | David Harris Democrat others 2.5% | 31.2% | R+35.0 |
More on California
Other California districts
About these results
Shares count all candidate votes, including write-ins, with a candidate's votes on several party lines added together. Each result is on the lines in force at the time. Mid-decade redraws before 2016 may be unmarked.
President in this district: 2016 and 2020, and 2024 on the new lines, are estimates: precinct votes are split between districts by census block.
Counties only partly inside the district show the 2024 result for that part; estimates are labelled.
Margin chart: winner minus runner-up. Gaps are unopposed races; dashed lines are new district lines.
Who lives here (2026 lines) is estimated from Census survey figures split by population.
Sources
Results: MIT Election Data and Science Lab, U.S. House 1976-2016 (doi:10.7910/DVN/IG0UN2, CC0; via MEDSL/constituency-returns), and Clerk of the US House, Statistics of the Presidential and Congressional Election 2018-2024 (public domain).
Presidential results: PollCheck calculation from MIT Election Data and Science Lab 2024 precinct returns (doi:10.7910/DVN/XDJYKC, doi:10.7910/DVN/USBYR4, CC0; state totals doi:10.7910/DVN/42MVDX, CC0) and Voting and Election Science Team 2016 and 2020 precinct results and shapes (doi:10.7910/DVN/NH5S2I, doi:10.7910/DVN/K7760H, CC BY 4.0), with US Census Bureau 2020 block populations and block equivalency files (public domain). Official figures: Texas Legislative Council (2024 on the 2026 lines); Louisiana, New Jersey, California and Washington election offices (county totals). Certified results transcribed by Wikipedia (CC BY-SA 4.0): Maine 2024 by district: 2024 United States presidential election in Maine (revision 1382530995); Indiana county totals: 2024 United States presidential election in Indiana (revision 1382505975); Oregon county totals: 2024 United States presidential election in Oregon (revision 1382605746).
District lines: US Census Bureau TIGER/Line 2026 (120th Congress) and 2025 cartographic boundary files (119th Congress), public domain.
Members: unitedstates/congress-legislators (CC0).
Counties: US Census Bureau 2024 cartographic boundary file (public domain); 2024 county results summed from the same MEDSL precinct returns, with the official county totals above.
Demographics: US Census Bureau, American Community Survey 5-year estimates 2020-2024; 2020 Census P.L. 94-171 (public domain).
2028 candidates: Federal Election Commission (public domain).
Photos: official portraits, public domain (US government); see Photo credits.
PollCheck US. Data through November 5, 2026. Photo credits