Skip to main content
Casa de Oro-Mount Helix CDP, California

Casa de Oro-Mount Helix CDP, California

Census Designated Place · Latest: 2024↓ R+3.4 vs 2020

Leans Democratic — shifted 3.4pp toward Republicans in 2024 — 20K residents

Ask HistorianOpen in ExploreCompareShare image

Place Story

What defines Casa de Oro-Mount Helix CDP

Methodology

  • Leans Democratic since 2016

    Competitive with a modest baseline — persuasion matters on the margin.

  • Biggest swing: D+11.7 in 2016

    Volatile behavior — treat historical margins with caution.

Similarity Explorer

Similar cities

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

Located In

Casa de Oro-Mount Helix CDP sits inside these higher-level geographies.
Historian Query

Ask the Historian

Explore Casa de Oro-Mount Helix CDP's political evolution with the Historian
Race & Ancestry

Who Lives Here

A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.
Casa de Oro-Mount Helix CDPCensus 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) 60.5%Hispanic 23.2%Black 6.4%Multiracial 4.8%Asian 4.0%Native American 0.6%Native Hawaiian 0.5%
GroupLocalNational
White (Non-Hispanic)
60.5%57.4%
Hispanic / Latino
23.2%19.3%
Black / African American
6.4%12.2%
Multiracial / Other
4.8%4.0%
Asian
4.0%6.0%
Native American / Alaska Native
0.6%0.9%
Native Hawaiian / Pacific Islander
0.5%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 Casa de Oro-Mount Helix CDP? 19,576 residents as of the 2020 Census.

Demographic Comparison

Demographics

Read this geography's profile in three layers: local, state (where available), and national baseline.
Casa de Oro-Mount Helix CDP vs National20K residents
Population & electorate

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

Total population
Local vs state vs U.S.
20K
local
20KNational 334.9M
Share of U.S. population
Local vs state vs U.S.
0.01%
local
0.01%National 100%
Voting-age population
Local vs state vs U.S.
80.3%
local
80.3%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/ANational $83,960
Poverty rate
Local vs state vs U.S.
N/A
local
N/ANational 12.5%
College degree
Local vs state vs U.S.
N/A
local
N/ANational 35.6%
Homeownership
Local vs state vs U.S.
N/A
local
N/ANational 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/ANational 39.1 yrs
Age 18–29
Local vs state vs U.S.
N/A
local
N/ANational 15.7%
Age 65+
Local vs state vs U.S.
N/A
local
N/ANational 17.0%
Foreign born
Local vs state vs U.S.
N/A
local
N/ANational 14.1%
Non-English at home
Local vs state vs U.S.
N/A
local
N/ANational 22.2%
English only
Local vs state vs U.S.
N/A
local
N/ANational 77.8%
Voter Turnout

Turnout in Casa de Oro-Mount Helix CDP

Estimated using 2020 Census voting-age population.
2024 Turnout
70.5%
vs Previous
-5.2pp
Voting-Age Pop
15,715
History
2008–2024
Competitiveness

How competitive is Casa de Oro-Mount Helix CDP?

Lean DAvg margin: D+7.2 (last 3 elections)
2008
R+6.1
2012
R+8.7
2016
D+3.0
2020
D+11.0
2024
D+7.6
Elasticity
19.6pp
margin range
Party Flips
1
last 30 years
5-Elec Avg
D+1.4
Upgrade Path

Unlock City Analytics

Advance from the public dossier into precinct-level, insight-rich district intelligence.
Target plan Pro$33/mo
Precinct data, Smart Insights, full history, and export controls tailored to place pages.
Precinct-Level Data
See results for every neighborhood and voting precinct
Smart Insights
Automated highlights from recent election patterns
Full Historical Access
165 years of election data at every level of geography
CSV Exports
Download any table or chart as a CSV file
Upgrade to Pro$33/mo