What kinds of homes are in Walnut, CA?

Name: Types of homes in Walnut, CA, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Walnut, CA has 9,230 (±312) homes (2020–2024 American Community Survey).

That is about 1,027 homes per square mile of land.

94.7% are detached single-family houses.

0.4% are in buildings of two to four units.

2.6% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 9,230 (±312)
Detached houses: 94.7%
2–4 unit buildings: 0.4%
5+ unit buildings: 2.6%

Homes in Walnut by building size

Housing units by units in structure, 2020–2024
Building type	Walnut	Los Angeles County	California	United States
Single-family, detached	94.7% (±1.4 points)	47.3%	57.0%	61.3%
Single-family, attached (townhouse, rowhouse)	2.1% (±0.9 points)	6.6%	7.4%	6.2%
2 units	0.0% (±0.5 points)	2.6%	2.4%	3.4%
3 or 4 units	0.4% (±0.3 points)	5.9%	5.4%	4.3%
5 to 9 units	0.1% (±0.2 points)	7.8%	5.7%	4.5%
10 to 19 units	0.4% (±0.4 points)	7.6%	4.9%	4.3%
20 or more units	2.1% (±1.0 points)	20.5%	13.6%	10.3%
Mobile home	0.1% (±0.2 points)	1.6%	3.5%	5.6%
Boat, RV, van, etc.	0.1% (±0.1 points)	0.1%	0.1%	0.1%

In Walnut, the share of homes in buildings of five or more units is lower than in Los Angeles County (35.9%).

It is also lower than in California (24.2%).

It is lower than the national figure (19.1%).

Homes in buildings of 5 or more units in places near Walnut

Nearest places with a published estimate, compared with Walnut
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Walnut	—	2.6% (±1.1 points)	—
South San Jose Hills	3.3 mi	0.8% (±1.2 points)	Lower
Diamond Bar	3.3 mi	10.2% (±2.0 points)	Higher
West Covina	3.4 mi	21.6% (±1.9 points)	Higher
Covina	4.0 mi	25.7% (±3.1 points)	Higher
Valinda	4.3 mi	3.2% (±2.0 points)	Not measurably different
Charter Oak	4.5 mi	26.6% (±9.1 points)	Higher
Industry	4.9 mi	2.5% (±75.9 points)	Not measurably different
Rowland Heights	5.0 mi	15.1% (±2.5 points)	Higher

Nearby places with a measurably lower figure: South San Jose Hills, CA (0.8%).

Nearby places with a measurably higher figure: Diamond Bar, CA (10.2%), West Covina, CA (21.6%), Covina, CA (25.7%).

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

Homes in buildings of 5 or more units across Los Angeles County, place by place

Rank	Place	Homes in buildings of 5 or more units
114	Topanga	4.1% (±3.3 points)
115	Westlake Village	3.5% (±1.9 points)
116	Valinda	3.2% (±2.0 points)
117	Altadena	3.0% (±1.0 points)
118 (tie)	La Cañada Flintridge	2.6% (±1.3 points)
118 (tie)	Rolling Hills Estates	2.6% (±1.4 points)
118 (tie)	Walnut	2.6% (±1.1 points)
121	Industry	2.5% (±75.9 points)
122	Bradbury	2.3% (±16.5 points)
123	Avocado Heights	1.7% (±1.5 points)
124	Vincent	1.6% (±1.6 points)
125	South Monrovia Island	1.4% (±4.2 points)
126	La Habra Heights	1.2% (±2.3 points)

Showing 13 of 140 places in Los Angeles County, ranked from highest to lowest.

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 Walnut

How many homes are in Walnut?

Walnut, CA has an estimated 9,230 (±312) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Walnut houses or apartments?

94.7% are detached houses and 2.1% attached houses, while 3.0% are in buildings of two or more units.

How many two-family and small multifamily homes are in Walnut?

0.4% of homes in Walnut are in buildings of two to four units, the small rental buildings that are often owner-occupied.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Walnut 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 Walnut city, California (place:83332, 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_0001E, DP04_0001M, DP04_0007PE, DP04_0007PM, DP04_0008PE, DP04_0008PM, DP04_0009PE, DP04_0009PM, DP04_0010PE, DP04_0010PM, DP04_0011PE, DP04_0011PM, DP04_0012PE, DP04_0012PM, DP04_0013PE, DP04_0013PM, DP04_0014PE, DP04_0014PM, DP04_0015PE, DP04_0015PM

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.