California 39th Congressional District, California: Tossup district. In 2024, voted R+1%. Republican peak: R+57 in 1928.
Key facts
- 2024 presidential margin
- R+1MIT Election Lab
- Political archetype
- TossupAkashic typology
- Population
- 96,9692024 5-year
- Median household income
- $93,0742024 5-year
- White (non-Hispanic)
- 37.6%2024 5-year
- Black
- 6.4%2024 5-year
- Hispanic / Latino
- 51.3%2024 5-year
- Peak Democratic margin
- D+29 in 1912MIT Election Lab
- Peak Republican margin
- R+57 in 1928MIT Election Lab
D
TAKANO, Mark
−1 liberal+1 conservative
Predecessors: KIM, Young (2021–2023), CISNEROS, Gil (2019–2021), ROYCE, Edward Randall (2017–2019), ROYCE, Edward Randall (2015–2017)
Source · Voteview / Lewis, Poole, Rosenthal et al. (CC-BY).
Constituent county margins for Congressional District 39, 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 |
|---|---|---|---|---|---|
| R | 17,675 | 18,140 | 36,795 | ||
| D | 20,670 | 17,572 | 39,011 | ||
| D | 14,620 | 13,037 | 29,396 | ||
| D | 12,874 | 12,446 | 25,943 | ||
| D | 12,715 | 12,130 | 25,324 | ||
| R | 8,951 | 12,616 | 21,814 | ||
| R | 7,925 | 9,075 | 17,649 | ||
| R | 6,595 | 6,988 | 15,321 | ||
| D | 6,504 | 6,238 | 16,833 | ||
| R | 5,208 | 7,824 | 13,159 | ||
| R | 3,992 | 7,133 | 11,236 | ||
| R | 2,999 | 5,698 | 9,518 | ||
| R | 3,765 | 3,825 | 7,768 | ||
| R | 2,801 | 4,230 | 7,293 | ||
| R | 2,392 | 3,263 | 6,168 | ||
| D | 3,150 | 2,393 | 5,547 | ||
| R | 1,990 | 2,576 | 4,588 | ||
| R | 1,334 | 2,221 | 3,573 | ||
| R | 1,018 | 1,912 | 2,960 | ||
| R | 912 | 1,260 | 2,264 | ||
| R | 761 | 906 | 1,680 | ||
| R | 783 | 852 | 1,658 | ||
| D | 666 | 652 | 1,334 | ||
| R | 499 | 552 | 1,100 | ||
| R | 187 | 689 | 883 | ||
| R | 52 | 376 | 607 | ||
| R | 109 | 357 | 513 | ||
| R | 178 | 292 | 534 | ||
| O | 116 | 0 | 395 | ||
| R | 54 | 126 | 221 | ||
| R | 27 | 103 | 158 | ||
| R | 44 | 91 | 149 | ||
| R | 66 | 81 | 152 | ||
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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
6.6%
English
6.1%
Irish
5.3%
Italian
3.0%
American
2.7%
French
1.2%
Scottish
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: 37.0 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
$93,074
Congressional District 39 ranks near the middle of US counties.
Congressional District 39$93,074
California$99,122
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
10.6%
Child poverty is below the national average.
Children under 1813.2%
Working age (18–64)9.7%
Seniors (65+)11.2%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
57.6%
speak English only
Spanish35.0%
Asian & Pacific Islander4.4%
Other Indo-European2.1%
Other languages1.0%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 55.9% of residents not counted as adherents by any reporting body.
CA-39 spans the eastern San Gabriel Valley, where a large Asian American population—including substantial Chinese and Korean communities—has made it one of the most competitive suburban districts in the state, decided by just over a point in 2024.
The district's recent history is a story of close margins. The Democratic margin reached twenty-nine points in 1912; the Republican margin reached fifty-seven points in 1928. Most other elections have been decided by single-digit points.
Its demographics — a population of 96,969, a 38% non-Hispanic-white share, a median household income of $93,074 — situate the district close to national averages on several dimensions.
Compare two places, side by side
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Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Congressional District 39, California. Akashic. https://akashic.app/cd/0639/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did Congressional District 39, California vote in 2024?
In 2024, Congressional District 39, California voted Republican by 1.3 points (R+1), carried by the Republican candidate. Out of 36,795 votes cast, 17,675 went Democratic and 18,140 went Republican.
What is Congressional District 39, California's political archetype?
Akashic classifies Congressional District 39, California as a "Tossup" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 7 times, Republican 25 times, and other 1 times.
When did Congressional District 39, California last vote Democratic?
The most recent presidential election in which Congressional District 39, California voted Democratic was 2020.
How many people live in Congressional District 39, California?
Congressional District 39, California has a population of 96,969 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Congressional District 39, California?
Median household income in Congressional District 39, California is $93,074 — above the national median of $80,734. The California state median is $99,122.
What is the political history of Congressional District 39, California?
Akashic tracks 38 presidential elections in Congressional District 39, California from 1876 to 2024. Of those, 7 went Democratic and 25 went Republican. The district's archetype — "Tossup" — captures the overall trajectory of that voting record.