California 12th Congressional District, California: Democratic loyalist district. In 2024, voted D+54%. Democratic peak: D+64 in 2016.
Key facts
- 2024 presidential margin
- D+54MIT Election Lab
- Political archetype
- Democratic loyalistAkashic typology
- Population
- 214,8012024 5-year
- Median household income
- $129,4042024 5-year
- White (non-Hispanic)
- 29.8%2024 5-year
- Black
- 9.6%2024 5-year
- Hispanic / Latino
- 23.4%2024 5-year
- Peak Democratic margin
- D+64 in 2016MIT Election Lab
- Peak Republican margin
- R+55 in 1924MIT Election Lab
D
SIMON, Lateefah
−1 liberal+1 conservative
Predecessors: LEE, Barbara (2023–2025), PELOSI, Nancy (2021–2023), PELOSI, Nancy (2019–2021), PELOSI, Nancy (2017–2019)
Source · Voteview / Lewis, Poole, Rosenthal et al. (CC-BY).
Constituent county margins for Congressional District 12, CAOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 65,113 | 18,327 | 87,278 | ||
| D | 80,489 | 17,741 | 100,805 | ||
| D | 67,115 | 12,483 | 85,951 | ||
| D | 61,218 | 14,082 | 77,780 | ||
| D | 63,755 | 15,562 | 81,176 | ||
| D | 55,099 | 17,038 | 73,259 | ||
| D | 44,709 | 15,526 | 64,432 | ||
| D | 39,622 | 13,873 | 60,216 | ||
| D | 43,577 | 14,234 | 69,083 | ||
| D | 40,444 | 21,195 | 62,407 | ||
| D | 36,770 | 25,051 | 62,658 | ||
| D | 26,295 | 20,645 | 54,420 | ||
| D | 30,744 | 20,242 | 53,132 | ||
| D | 33,794 | 26,308 | 61,416 | ||
| D | 28,645 | 19,981 | 53,124 | ||
| D | 37,034 | 18,639 | 55,739 | ||
| D | 28,353 | 23,919 | 52,464 | ||
| R | 22,724 | 25,184 | 48,063 | ||
| R | 22,705 | 25,200 | 48,296 | ||
| D | 20,200 | 19,679 | 42,259 | ||
| D | 22,191 | 16,074 | 38,445 | ||
| D | 19,393 | 15,283 | 35,109 | ||
| D | 19,544 | 10,744 | 30,682 | ||
| D | 13,928 | 11,650 | 26,723 | ||
| R | 7,981 | 15,466 | 23,681 | ||
| R | 1,049 | 10,634 | 17,325 | ||
| R | 2,813 | 9,578 | 13,866 | ||
| R | 5,743 | 6,726 | 13,380 | ||
| O | 3,210 | 0 | 8,709 | ||
| R | 940 | 2,803 | 4,370 | ||
| R | 586 | 2,507 | 3,573 | ||
| R | 887 | 1,888 | 2,928 | ||
| R | 1,115 | 1,769 | 2,936 | ||
| R | 949 | 1,161 | 2,445 | ||
| R | 762 | 1,169 | 2,053 | ||
| R | 632 | 991 | 1,648 | ||
| R | 523 | 781 | 1,318 | ||
| R | 451 | 658 | 1,111 |
Congressional elections · 17 Senate races
U.S. Senate
| Year | Won | D % | R % | Total |
|---|---|---|---|---|
| 2024 | D | 58.9% | 41.1% | 15,348,846 |
| 2022 | D | 61.1% | 38.9% | 10,843,650 |
| 2018 | D | 100.0% | 0.0% | 11,113,364 |
| 2016 | D | 100.0% | 0.0% | 12,244,170 |
| 2012 | D | 62.5% | 37.5% | 12,578,511 |
| 2010 | D | 52.2% | 42.2% | 10,000,160 |
| 2006 | D | 59.4% | 35.0% | 8,541,476 |
| 2004 | D | 57.7% | 37.8% | 12,053,295 |
| 2000 | D | 55.8% | 36.6% | 10,623,608 |
| 1998 | D | 53.1% | 43.0% | 8,311,905 |
| 1994 | D | 46.7% | 44.8% | 8,514,089 |
| 1992 | D | 47.9% | 43.0% | 10,799,703 |
| 1988 | R | 44.0% | 52.8% | 9,743,598 |
| 1986 | D | 49.3% | 47.9% | 7,398,462 |
| 1982 | R | 44.8% | 51.5% | 7,805,450 |
| 1980 | D | 56.5% | 37.1% | 8,324,012 |
| 1976 | R | 46.9% | 50.2% | 7,470,586 |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
5.8%
English
5.5%
Irish
5.4%
Italian
3.0%
American
1.8%
French
1.3%
Polish
1.1%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 39.0 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$129,404
Congressional District 12 ranks near the middle of US counties.
Congressional District 12$129,404
California$99,122
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
9.2%
Child poverty is below the national average.
Children under 188.8%
Working age (18–64)9.0%
Seniors (65+)13.2%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
52.8%
speak English only
Asian & Pacific Islander19.7%
Spanish16.7%
Other Indo-European9.0%
Other languages1.8%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 59.0% of residents not counted as adherents by any reporting body.
Anchored in San Francisco, CA-12 posts presidential margins rarely seen outside urban cores—Biden and Harris each carried it by more than 60 points—making it among the least competitive seats in Congress.
The Democratic margin in California 12th Congressional District reached its widest at sixty-four points in 2016. The margin in 2024 was fifty-four points — still decisive.
Its loyalty is rooted in its place. Median household income of $129,404, a 30% non-Hispanic-white share, and a population of 214,801 together describe a district whose political habits are deeply settled.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Congressional District 12, California. Akashic. https://akashic.app/cd/0612/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did Congressional District 12, California vote in 2024?
In 2024, Congressional District 12, California voted Democratic by 53.6 points (D+54), carried by the Democratic candidate. Out of 87,278 votes cast, 65,113 went Democratic and 18,327 went Republican.
What is Congressional District 12, California's political archetype?
Akashic classifies Congressional District 12, California as a "Democratic loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 22 times, Republican 15 times, and other 1 times.
When did Congressional District 12, California last vote Republican?
The most recent presidential election in which Congressional District 12, California voted Republican was 1956.
How many people live in Congressional District 12, California?
Congressional District 12, California has a population of 214,801 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Congressional District 12, California?
Median household income in Congressional District 12, California is $129,404 — above the national median of $80,734. The California state median is $99,122.
What is the political history of Congressional District 12, California?
Akashic tracks 38 presidential elections in Congressional District 12, California from 1876 to 2024. Of those, 22 went Democratic and 15 went Republican. The district's archetype — "Democratic loyalist" — captures the overall trajectory of that voting record.