akashic
1876–2024
Congressional District 12·California

California 12th Congressional District moved 7 points toward the Republican candidate between 2020 and 2024.

One of the nation's most Democratic-leaning federal districts

2008 — 2024·5 elections
CA
LatestD+74in 2024
TypologyNew Americancluster typology
Population214,8012024 ACS

California 12th Congressional District: New American district. In 2024, voted D+74%. Democratic peak: D+82 in 2012.

Key facts

2024 presidential margin
D+74MIT Election Lab
Political typology
New AmericanAkashic 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+82 in 2012MIT Election Lab
DW-NOMINATE
Member ideology
D
SIMON, LateefahCongress 119 · Democratic
DW-NOMINATE first-dimension (economic) score-0.58 sits at approximately the 21st percentile.0-0.58−1 liberal+1 conservative
SIMON scores -0.58 on the first NOMINATE dimension (−1 most liberal, +1 most 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).
2024 presidential election
Congressional District 12
HarrisD+74
—
2024 presidential margin by county for Congressional District 12, CAA map of the constituent counties of Congressional District 12, CA, each outlined and filled by its 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic).Alameda County, CA · D+54San Francisco County, CA · D+65
How it voted
Share of the 2024 vote
Kamala Harris ✓Democratic84.5%265,443
Donald TrumpRepublican10.7%33,510
OtherAll other candidates4.9%15,288
D+60
R+60
2 counties, each filled by 2024 D-vs-R margin. Hover any county for its result.
presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 2008 to 2024. Most recent: +73.8% in 2024.+73.8%DR20082024
Presidential margin over time
YearMargin (D minus R)
2008+80.1%
2012+82.2%
2016+81.2%
2020+80.7%
2024+73.8%
DemocraticRepublican
5 presidential elections
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
D
+73.8%
265,44333,510314,241
D
+80.7%
328,58431,697367,916
D
+81.2%
285,83121,162326,104
D
+82.2%
262,32725,671287,998
D
+80.1%
275,73030,135306,772
Congressional elections · 17 Senate races

U.S. Senate

Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
YearWonD %R %Total
2024D58.9%41.1%15,348,846
2022D61.1%38.9%10,843,650
2018D100.0%0.0%11,113,364
2016D100.0%0.0%12,244,170
2012D62.5%37.5%12,578,511
2010D52.2%42.2%10,000,160
2006D59.4%35.0%8,541,476
2004D57.7%37.8%12,053,295
2000D55.8%36.6%10,623,608
1998D53.1%43.0%8,311,905
1994D46.7%44.8%8,514,089
1992D47.9%43.0%10,799,703
1988R44.0%52.8%9,743,598
1986D49.3%47.9%7,398,462
1982R44.8%51.5%7,805,450
1980D56.5%37.1%8,324,012
1976R46.9%50.2%7,470,586

Demographics

2024 ACS
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.
2024 ACS
Age distribution by sex
Median age: 39.0 in this county, 39.1 nationally
Male
Age
Female
0.7%
85+
1.2%
2.0%
75–84
2.5%
4.2%
65–74
4.8%
6.0%
55–64
6.1%
6.7%
45–54
6.6%
8.1%
35–44
7.8%
7.8%
25–34
7.8%
4.0%
18–24
4.0%
7.5%
5–17
7.1%
2.7%
<5
2.6%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
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.
2024 ACS
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.
2024 ACS
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.
2020 religion census
Religious adherents
Adherents per capita by tradition
Catholic & Orthodox
19.9%
Other Christian
7.3%
Non-Christian
7.1%
Baptist
2.6%
Pentecostal & Holiness
2.2%
Mainline Protestant
1.2%
Methodist
0.7%
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.

Across the recorded series it reached a Democratic high of eighty-two points in 2012. Between 2020 and 2024 the district moved seven points toward the Republican candidate; the 2024 margin was seventy-four points.

A population of 214,801, a 30% non-Hispanic-white share, and a median household income of $129,404 describe the district.

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 73.8 points (D+74), carried by the Democratic candidate. Out of 314,241 votes cast, 265,443 went Democratic and 33,510 went Republican.
What is Congressional District 12, California's political typology?
Akashic places Congressional District 12, California in the "New American" typology. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 5 elections in the dataset, the district has voted Democratic 5 times, Republican 0 times, and other 0 times.
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 5 presidential elections in Congressional District 12, California from 2008 to 2024. Of those, 5 went Democratic and 0 went Republican. The district's typology — "New American" — captures where that record, its demographics, and its recent swing place it among American communities.