California 9th Congressional District, California: Democratic loyalist district. In 2024, voted D+2%. Democratic peak: D+56 in 1912.
Key facts
- 2024 presidential margin
- D+2MIT Election Lab
- Political archetype
- Democratic loyalistAkashic typology
- Population
- 782,3692024 5-year
- Median household income
- $94,0982024 5-year
- White (non-Hispanic)
- 33.3%2024 5-year
- Black
- 6.7%2024 5-year
- Hispanic / Latino
- 41.9%2024 5-year
- Peak Democratic margin
- D+56 in 1912MIT Election Lab
- Peak Republican margin
- R+39 in 1924MIT Election Lab
D
HARDER, Josh
−1 liberal+1 conservative
Predecessors: MCNERNEY, Jerry (2021–2023), MCNERNEY, Jerry (2019–2021), MCNERNEY, Jerry (2017–2019), MCNERNEY, Jerry (2015–2017)
Source · Voteview / Lewis, Poole, Rosenthal et al. (CC-BY).
Constituent county margins for Congressional District 9, 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 | 132,716 | 126,574 | 268,573 | ||
| D | 166,729 | 119,546 | 293,805 | ||
| D | 125,851 | 88,179 | 231,559 | ||
| D | 118,143 | 86,331 | 209,867 | ||
| D | 119,091 | 91,366 | 215,288 | ||
| R | 91,845 | 100,722 | 194,537 | ||
| D | 83,864 | 82,361 | 172,254 | ||
| D | 71,674 | 66,069 | 151,142 | ||
| D | 68,447 | 59,324 | 161,362 | ||
| R | 64,753 | 76,305 | 142,541 | ||
| R | 56,012 | 82,835 | 140,403 | ||
| R | 43,616 | 65,698 | 120,906 | ||
| R | 50,939 | 51,844 | 105,274 | ||
| R | 46,072 | 62,660 | 114,106 | ||
| R | 43,532 | 47,531 | 100,216 | ||
| D | 59,639 | 36,119 | 95,843 | ||
| R | 43,680 | 47,815 | 91,864 | ||
| R | 37,382 | 43,753 | 81,313 | ||
| R | 34,645 | 43,122 | 78,333 | ||
| R | 27,767 | 28,139 | 58,204 | ||
| D | 26,669 | 23,198 | 50,048 | ||
| D | 25,448 | 22,029 | 48,017 | ||
| D | 27,220 | 9,864 | 37,533 | ||
| D | 20,481 | 10,649 | 32,594 | ||
| R | 9,609 | 15,744 | 25,630 | ||
| R | 2,192 | 10,476 | 21,112 | ||
| R | 5,919 | 11,219 | 18,365 | ||
| D | 10,457 | 7,317 | 19,139 | ||
| D | 7,160 | 0 | 12,724 | ||
| R | 3,012 | 4,083 | 7,816 | ||
| R | 2,096 | 4,059 | 6,621 | ||
| R | 2,614 | 2,998 | 5,782 | ||
| D | 3,144 | 3,129 | 6,421 | ||
| D | 2,808 | 2,662 | 6,308 | ||
| D | 2,556 | 2,539 | 5,385 | ||
| R | 2,627 | 2,756 | 5,513 | ||
| R | 2,186 | 2,295 | 4,488 | ||
| R | 1,702 | 2,043 | 3,745 |
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
6.5%
English
5.4%
Irish
5.0%
Italian
3.7%
American
1.9%
French
1.0%
Scottish
1.0%
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: 35.8 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
$94,098
Congressional District 9 ranks near the middle of US counties.
Congressional District 9$94,098
California$99,122
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
12.2%
Children face moderate poverty.
Children under 1816.0%
Working age (18–64)10.7%
Seniors (65+)12.6%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
57.4%
speak English only
Spanish27.0%
Asian & Pacific Islander8.8%
Other Indo-European5.8%
Other languages1.0%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 61.5% of residents not counted as adherents by any reporting body.
California's 9th congressional district, anchored in the eastern Bay Area, returned a D+5.1 margin in 2024 — narrow by California standards and a signal of genuine swing potential in a state more often taken for granted.
The Democratic margin in California 9th Congressional District reached its widest at fifty-six points in 1912. The margin in 2024 was two points — still decisive.
Its loyalty is rooted in its place. Median household income of $94,098, a 33% non-Hispanic-white share, and a population of 782,369 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 9, California. Akashic. https://akashic.app/cd/0609/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did Congressional District 9, California vote in 2024?
In 2024, Congressional District 9, California voted Democratic by 2.3 points (D+2), carried by the Democratic candidate. Out of 268,573 votes cast, 132,716 went Democratic and 126,574 went Republican.
What is Congressional District 9, California's political archetype?
Akashic classifies Congressional District 9, 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 18 times, Republican 20 times, and other 0 times.
When did Congressional District 9, California last vote Republican?
The most recent presidential election in which Congressional District 9, California voted Republican was 2004.
How many people live in Congressional District 9, California?
Congressional District 9, California has a population of 782,369 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Congressional District 9, California?
Median household income in Congressional District 9, California is $94,098 — above the national median of $80,734. The California state median is $99,122.
What is the political history of Congressional District 9, California?
Akashic tracks 38 presidential elections in Congressional District 9, California from 1876 to 2024. Of those, 18 went Democratic and 20 went Republican. The district's archetype — "Democratic loyalist" — captures the overall trajectory of that voting record.