California's 48th Congressional District
California · Latest: 2024
Safe Republican — flipped 2 times in 17 elections
Race & ancestry
| Group | % |
|---|---|
▶White (Non-Hispanic)(13) | 52.5% |
▶Hispanic / Latino(18) | 30.7% |
▶Black / African American(12) | 3.3% |
▶Asian(6) | 6.9% |
▶Middle Eastern / North African(11) | 4.0% |
▶Native American / Alaska Native(3) | 1.4% |
Multiracial / Other | 5.2% |
Key demographics
| Metric | Value |
|---|---|
| Median household income | $113K |
| Bachelor's or higher | 34.8% |
| English only at home | 68.0% |
| Other language at home | 25.9% |
| Foreign-born | 16.9% |
Presidential results
| Year | Result |
|---|---|
| 2024 | R+3.6 |
| 2020 | D+1.5 |
| 2016 | D+1.7 |
| 2012 | R+11.9 |
| 2008 | R+4.9 |
California's 48th Congressional District is a congressional district that has a population of 760,621. In the 2024 presidential election, it voted Republican with a margin of R+3.6. Akashic Edge tracks 5 presidential elections here, dating back to 2008.
| Year | Dem % | Rep % | Margin | Swing |
|---|---|---|---|---|
| 2024 | 46.7% | 50.3% | R+3.6 | R+5.0 |
| 2020 | 49.7% | 48.3% | D+1.5 | R+0.2 |
| 2016 | 47.9% | 46.2% | D+1.7 | D+13.6 |
| 2012 | 44.0% | 56.0% | R+11.9 | R+7.0 |
| 2008 | 47.4% | 52.4% | R+4.9 | — |
What defines CA-48?
CA-48 flipped to Republicans in 2024 after voting the other way in 2020. It has a plurality-minority electorate (48% nonwhite) where demographic change is reshaping the political map.
District in State Context
Precinct Deep Dive
2024 / 2020 precinct vintages
See how each split precinct fragment inside CA-48 voted, swung, and lines up demographically.
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Key Insights
High-confidence patterns distilled from this geography's election history.
- The 2020 election was decided by just 1.5 points — razor-thin
- Won by both parties in recent history — Democrats most recently in 2020, Republicans in 2024
- Turnout decreased by 6.0 percentage points since the previous presidential election
Who Lives Here
A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.
Census race profile
Major Census race and ethnicity groups shown as a share of total population.
| Group | CA-48 | State | National |
|---|---|---|---|
▶White (Non-Hispanic)(13) | 52.5% | 33.8% | 57.4% |
▶Hispanic / Latino(18) | 30.7% | 40.2% | 19.3% |
▶Asian(6) | 6.9% | 15.5% | 6.0% |
Multiracial / Other | 5.2% | 3.5% | 4.0% |
▶Middle Eastern / North African(11) | 4.0% | — | 0.9% |
▶Black / African American(12) | 3.3% | 5.4% | 12.2% |
▶Native American / Alaska Native(3) | 1.4% | 1.3% | 0.9% |
Method notes
Demographics
Read this geography's profile in three layers: local, state (where available), and national baseline.
Population & electorate
Scale, voting-age share, and this geography's footprint inside the national electorate.
Total population
761K
Share of U.S. population
0.23%
Voting-age population
75.3%
Economic profile
Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.
Median household income
$113,202
Poverty rate
8.2%
College degree
34.8%
Homeownership
71.4%
Community profile
Age structure, language use, and nativity signals that explain how this geography differs from state and nation.
Median age
39.5 yrs
Age 18–29
13.1%
Age 65+
16.8%
Foreign born
16.9%
Non-English at home
27.6%
English only
72.4%
Turnout in CA-48
Estimated using 2020 Census voting-age population.
64.1%
-6.0pp
572,394
2008–2024
How competitive is CA-48?
TossupAvg margin: R+0.1 (last 3 elections)
2008
R+4.9
2012
R+11.9
2016
D+1.7
2020
D+1.5
2024
R+3.6
13.6pp
2
R+3.5
Do voters in CA-48 split their tickets?
Divergence between offices in the same election reveals persuadable voters.
Heavy splitting (41/100)
| Offices | Margin A | Margin B | Split |
|---|---|---|---|
| President vs House | R+3.6 | R+18.6 | 15.0pp |
Average divergence across office pairs: 11.4pp
Other California Districts
Compare the rest of the delegation at a glance, with each card anchored to the latest House margin on current district pages.
CA-01
Latest HouseR+30.7
CA-01Latest HouseR+30.7
CA-02Latest HouseD+43.8
CA-02Latest HouseD+43.8
CA-03Latest HouseR+10.9
CA-03Latest HouseR+10.9
CA-04Latest HouseD+32.9
CA-04Latest HouseD+32.9
CA-05Latest HouseR+23.5
CA-05Latest HouseR+23.5
CA-06Latest HouseD+15.2
CA-06Latest HouseD+15.2
CA-07Latest HouseD+33.5
CA-07Latest HouseD+33.5
CA-08Latest HouseD+47.9
CA-08Latest HouseD+47.9
CA-09Latest HouseD+3.6
CA-09Latest HouseD+3.6
CA-10Latest HouseD+33.0
CA-10Latest HouseD+33.0
CA-11Latest HouseD+62.1
CA-11Latest HouseD+62.1
CA-12Latest HouseD+100.0
CA-12Latest HouseD+100.0
CA-13Latest HouseD+0.1
CA-13Latest HouseD+0.1
CA-14Latest HouseD+35.5
CA-14Latest HouseD+35.5
CA-15Latest HouseD+46.2
CA-15Latest HouseD+46.2
CA-16Latest HouseD+100.0
CA-16Latest HouseD+100.0
CA-17Latest HouseD+35.3
CA-17Latest HouseD+35.3
CA-18Latest HouseD+29.3
CA-18Latest HouseD+29.3
CA-19Latest HouseD+38.6
CA-19Latest HouseD+38.6
CA-20Latest HouseR+100.0
CA-20Latest HouseR+100.0
CA-21Latest HouseD+5.2
CA-21Latest HouseD+5.2
CA-22Latest HouseR+6.8
CA-22Latest HouseR+6.8
CA-23Latest HouseR+20.3
CA-23Latest HouseR+20.3
CA-24Latest HouseD+25.4
CA-24Latest HouseD+25.4
CA-25Latest HouseD+12.5
CA-25Latest HouseD+12.5
CA-26Latest HouseD+12.1
CA-26Latest HouseD+12.1
CA-27Latest HouseD+2.7
CA-27Latest HouseD+2.7
CA-28Latest HouseD+29.9
CA-28Latest HouseD+29.9
CA-29Latest HouseD+39.5
CA-29Latest HouseD+39.5
CA-30Latest HouseD+36.8
CA-30Latest HouseD+36.8
CA-31Latest HouseD+19.5
CA-31Latest HouseD+19.5
CA-32Latest HouseD+32.4
CA-32Latest HouseD+32.4
CA-33Latest HouseD+17.6
CA-33Latest HouseD+17.6
CA-34Latest HouseD+100.0
CA-34Latest HouseD+100.0
CA-35Latest HouseD+16.8
CA-35Latest HouseD+16.8
CA-36Latest HouseD+37.4
CA-36Latest HouseD+37.4
CA-37Latest HouseD+78.3
CA-37Latest HouseD+78.3
CA-38Latest HouseD+19.7
CA-38Latest HouseD+19.7
CA-39Latest HouseD+13.4
CA-39Latest HouseD+13.4
CA-40Latest HouseR+10.5
CA-40Latest HouseR+10.5
CA-41Latest HouseR+3.4
CA-41Latest HouseR+3.4
CA-42Latest HouseD+36.3
CA-42Latest HouseD+36.3
CA-43Latest HouseD+50.1
CA-43Latest HouseD+50.1
CA-44Latest HouseD+42.8
CA-44Latest HouseD+42.8
CA-45Latest HouseD+0.2
CA-45Latest HouseD+0.2
CA-46Latest HouseD+26.9
CA-46Latest HouseD+26.9
CA-47Latest HouseD+2.9
CA-47Latest HouseD+2.9
CA-49Latest HouseD+4.3
CA-49Latest HouseD+4.3
CA-50Latest HouseD+28.6
CA-50Latest HouseD+28.6
CA-51Latest HouseD+21.4
CA-51Latest HouseD+21.4
CA-52Latest HouseD+32.6
CA-52Latest HouseD+32.6
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