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California Assembly District 78

California Assembly District 78

California · Latest: 2024↑ D+13.5 vs 2020

Safe Democratic — shifted 13.5pp toward Democrats in 2024 — 488K residents

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California Assembly District 78 is a state house district that has a population of 488,257. In the 2024 presidential election, it voted Democratic with a margin of D+36.3.

California Assembly District 78 Presidential Election Results, 2020–2024
YearDem %Rep %MarginSwing
202466.5%30.2%D+36.3D+13.5
202060.2%37.5%D+22.8—
Political Identity

What defines CA-HD-78?

CA-HD-78 is a deep Democratic urban geography with a D+36.3 margin in 2024. It shifted 13.5pp toward Democrats between 2020 and 2024. It has a population of 488K.

Similarity Explorer

Similar state house districts

Nearest neighbors matched on the same place-page feature set used across the dossier system.
8 visible matches
Historian Query

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Explore CA-HD-78's political evolution with the Historian
Automated Readout

Key Insights

High-confidence patterns distilled from this geography's election history.
  • Latest election (2024) was a Democratic landslide with a 36.3% margin
  • Swung 13.5 points toward Democratic between 2020 and 2024
Race & Ancestry

Who Lives Here

A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.
CA-HD-78Census ACS 2024
Census race profile
Major Census race and ethnicity groups shown as a share of total population.
Expand rows for ancestry detail
White (Non-Hispanic) 59.4%Hispanic 20.4%Asian 10.0%Multiracial 5.4%Black 3.9%Native American 0.7%
GroupCA-HD-78StateNational
White (Non-Hispanic)
59.4%33.8%57.4%
Hispanic / Latino
20.4%40.2%19.3%
Asian
10.0%15.5%6.0%
Multiracial / Other
5.4%3.5%4.0%
Black / African American
3.9%5.4%12.2%
Native American / Alaska Native
0.7%1.3%0.9%
Native Hawaiian / Pacific Islander
0.3%0.4%0.2%
Method notes

Census treats race and Hispanic/Latino origin as separate questions. Race categories other than Hispanic reflect total populations (small Hispanic overlap in Black, Asian, AIAN, NHPI). “Multiracial / Other” is derived as a non-overlapping remainder.

Detailed ancestry data unavailable for this geography.

Who lives in California Assembly District 78? 488,257 residents as of the 2020 Census.

Demographic Comparison

Demographics

Read this geography's profile in three layers: local, state (where available), and national baseline.
CA-HD-78 vs California vs National488K residents
Population & electorate

Scale, voting-age share, and this geography's footprint inside the national electorate.

Total population
Local vs state vs U.S.
488K
local
488KState 39.3MNational 334.9M
Share of U.S. population
Local vs state vs U.S.
0.15%
local
0.15%National 100%
Voting-age population
Local vs state vs U.S.
87.1%
local
87.1%State 75.8%National 75.7%
Economic profile

Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.

Median household income
Local vs state vs U.S.
N/A
local
N/AState $102,676National $83,960
Poverty rate
Local vs state vs U.S.
N/A
local
N/AState 12.0%National 12.5%
College degree
Local vs state vs U.S.
N/A
local
N/AState 36.6%National 35.6%
Homeownership
Local vs state vs U.S.
N/A
local
N/AState 55.9%National 65.2%
Community profile

Age structure, language use, and nativity signals that explain how this geography differs from state and nation.

Median age
Local vs state vs U.S.
N/A
local
N/AState 37.9 yrsNational 39.1 yrs
Age 18–29
Local vs state vs U.S.
N/A
local
N/AState 16.2%National 15.7%
Age 65+
Local vs state vs U.S.
N/A
local
N/AState 15.7%National 17.0%
Foreign born
Local vs state vs U.S.
N/A
local
N/AState 27.0%National 14.1%
Non-English at home
Local vs state vs U.S.
N/A
local
N/AState 44.4%National 22.2%
English only
Local vs state vs U.S.
N/A
local
N/AState 55.6%National 77.8%
Competitiveness

How competitive is CA-HD-78?

Safe DAvg margin: D+29.5 (last 3 elections)
2020
D+22.8
2024
D+36.3
Elasticity
13.5pp
margin range
Party Flips
0
last 30 years
5-Elec Avg
D+29.5

Other California State House Districts

79 total
NameMargin ↓
CA-HD-18D+72.1
CA-HD-14D+71.3
CA-HD-17D+67.3
CA-HD-55D+62.2
CA-HD-19D+57.5
CA-HD-61D+56.8
CA-HD-12D+55.5
CA-HD-23D+54.5
CA-HD-52D+53.6
CA-HD-57D+52.6
CA-HD-51D+52.0
CA-HD-21D+50.6
CA-HD-26D+45.3
CA-HD-28D+43.9
CA-HD-54D+43.8
CA-HD-65D+43.5
CA-HD-20D+40.4
CA-HD-69D+38.2
CA-HD-16D+36.5
CA-HD-02D+34.9
CA-HD-06D+34.0
CA-HD-44D+32.9
CA-HD-25D+32.4
CA-HD-15D+31.8
CA-HD-24D+30.7
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