How many homes in Costa Mesa, CA are overcrowded?

Name: Crowding and facilities in Costa Mesa, CA, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

8.3% (±1.3 points) of occupied homes in Costa Mesa, CA have more than one occupant per room (2020–2024 American Community Survey).

2.5% have more than 1.5.

0.2% lack complete plumbing.

0.9% lack a complete kitchen.

Figures last updated on November 12, 2026.

More than 1 per room: 8.3% (±1.3 points)
Lacking plumbing: 0.2%
Lacking a kitchen: 0.9%

Crowding and facilities in Costa Mesa

Share of occupied homes, estimate (90% margin of error)
	Costa Mesa	Orange County	California	United States
More than 1 person per room	8.3% (±1.3 points)	8.8% (±0.3 points)	8.2% (±0.1 points)	3.4%
More than 1.5 people per room	2.5% (±0.6 points)	3.5% (±0.2 points)	3.2% (±0.1 points)	1.2%
Lacking complete plumbing	0.2% (±0.1 points)	0.3% (±0.1 points)	0.4% (±0.1 points)	0.4%
Lacking a complete kitchen	0.9% (±0.3 points)	1.4% (±0.1 points)	1.2% (±0.1 points)	0.8%

A room is any whole room other than a bathroom, hall or porch; more than one person per room is the Census Bureau’s usual measure of crowding.

Complete plumbing means hot and cold running water and a bath or shower; a complete kitchen means a sink with a faucet, a stove or range and a refrigerator.

In Costa Mesa, the share of crowded homes is not measurably different from Orange County (8.8%).

It is not measurably different from California (8.2%).

It is higher than the national figure (3.4%).

Crowded homes in places near Costa Mesa

Nearest places with a published estimate, compared with Costa Mesa
Place	Distance	Crowded homes	Compared with this place
Costa Mesa	—	8.3% (±1.3 points)	—
Fountain Valley	3.8 mi	5.1% (±1.1 points)	Lower
Newport Beach	4.9 mi	1.9% (±0.7 points)	Lower
Santa Ana	5.2 mi	26.1% (±1.2 points)	Higher
Huntington Beach	5.7 mi	3.4% (±0.5 points)	Lower
Midway City	6.9 mi	15.7% (±8.4 points)	Not measurably different
Tustin	7.4 mi	11.5% (±1.8 points)	Higher
Westminster	7.6 mi	11.2% (±1.5 points)	Higher
Irvine	8.2 mi	6.1% (±0.7 points)	Lower

Nearby places with a measurably lower figure: Fountain Valley, CA (5.1%), Newport Beach, CA (1.9%), Huntington Beach, CA (3.4%).

Nearby places with a measurably higher figure: Santa Ana, CA (26.1%), Tustin, CA (11.5%), Westminster, CA (11.2%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about Costa Mesa

How many homes in Costa Mesa are overcrowded?

8.3% of occupied homes in Costa Mesa, CA have more than one person per room (2020–2024 American Community Survey).

How many homes in Costa Mesa lack plumbing or a kitchen?

0.2% lack complete plumbing facilities and 0.9% lack complete kitchen facilities.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Costa Mesa city, California

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Costa Mesa city, California (place:16532, in state:06).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0078PE, DP04_0078PM, DP04_0079PE, DP04_0079PM, DP04_0073PE, DP04_0073PM, DP04_0074PE, DP04_0074PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.