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California Assembly District 55

California Assembly District 55

California · Latest: 2024↑ D+41.2 vs 2020

Safe Democratic — shifted 41.2pp toward Democrats in 2024 — 479K residents

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California Assembly District 55 is a state house district that has a population of 478,859. In the 2024 presidential election, it voted Democratic with a margin of D+62.2.

California Assembly District 55 Presidential Election Results, 2020–2024
YearDem %Rep %MarginSwing
202479.5%17.3%D+62.2D+41.2
202059.4%38.5%D+21.0—
Political Identity

What defines CA-HD-55?

CA-HD-55 is a deep Democratic urban geography with a D+62.2 margin in 2024. It shifted 41.2pp toward Democrats between 2020 and 2024. It has a population of 479K.

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

Ask the Historian

Explore CA-HD-55'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 62.2% margin
  • Highly elastic — margins have ranged 41.2 points across recent elections, suggesting a volatile electorate
  • Swung 41.2 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-55Census ACS 2024
Census race profile
Major Census race and ethnicity groups shown as a share of total population.
Expand rows for ancestry detail
Asian 36.6%Hispanic 31.1%White (Non-Hispanic) 26.5%Black 2.5%Multiracial 2.2%Native American 0.9%
GroupCA-HD-55StateNational
Asian
36.6%15.5%6.0%
Hispanic / Latino
31.1%40.2%19.3%
White (Non-Hispanic)
26.5%33.8%57.4%
Black / African American
2.5%5.4%12.2%
Multiracial / Other
2.2%3.5%4.0%
Native American / Alaska Native
0.9%1.3%0.9%
Native Hawaiian / Pacific Islander
0.2%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 55? 478,859 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-55 vs California vs National479K residents
Population & electorate

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

Total population
Local vs state vs U.S.
479K
local
479KState 39.3MNational 334.9M
Share of U.S. population
Local vs state vs U.S.
0.14%
local
0.14%National 100%
Voting-age population
Local vs state vs U.S.
79.5%
local
79.5%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-55?

Safe DAvg margin: D+41.6 (last 3 elections)
2020
D+21.0
2024
D+62.2
Elasticity
41.2pp
margin range
Party Flips
0
last 30 years
5-Elec Avg
D+41.6

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-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-78D+36.3
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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