What kinds of homes are in Atherton, CA?

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

Atherton, CA has 2,667 (±176) homes (2020–2024 American Community Survey).

That is about 532 homes per square mile of land.

97.3% are detached single-family houses.

0.7% are in buildings of two to four units.

0.0% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 2,667 (±176)
Detached houses: 97.3%
2–4 unit buildings: 0.7%
5+ unit buildings: 0.0%

Homes in Atherton by building size

Housing units by units in structure, 2020–2024
Building type	Atherton	San Mateo County	California	United States
Single-family, detached	97.3% (±1.9 points)	55.3%	57.0%	61.3%
Single-family, attached (townhouse, rowhouse)	2.0% (±1.8 points)	8.7%	7.4%	6.2%
2 units	0.7% (±0.7 points)	2.0%	2.4%	3.4%
3 or 4 units	0.0% (±1.6 points)	4.0%	5.4%	4.3%
5 to 9 units	0.0% (±1.6 points)	5.6%	5.7%	4.5%
10 to 19 units	0.0% (±1.6 points)	6.1%	4.9%	4.3%
20 or more units	0.0% (±1.6 points)	17.0%	13.6%	10.3%
Mobile home	0.0% (±1.6 points)	1.1%	3.5%	5.6%
Boat, RV, van, etc.	0.0% (±1.6 points)	0.1%	0.1%	0.1%

In Atherton, the share of homes in buildings of five or more units is lower than in San Mateo County (28.7%).

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 Atherton

Nearest places with a published estimate, compared with Atherton
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Atherton	—	0.0% (±2.8 points)	—
North Fair Oaks	1.3 mi	18.0% (±4.1 points)	Higher
West Menlo Park	1.6 mi	2.7% (±3.4 points)	Not measurably different
Stanford	2.8 mi	65.1% (±7.2 points)	Higher
Menlo Park	3.3 mi	27.8% (±3.3 points)	Higher
Emerald Lake Hills	3.6 mi	0.0% (±4.7 points)	Not measurably different
East Palo Alto	3.8 mi	33.5% (±4.4 points)	Higher
Ladera	4.0 mi	0.0% (±13.5 points)	Not measurably different
Woodside	4.0 mi	0.0% (±3.5 points)	Not measurably different

Nearby places with a measurably higher figure: North Fair Oaks, CA (18.0%), Stanford, CA (65.1%), Menlo Park, CA (27.8%).

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 San Mateo County, place by place

Rank	Place	Homes in buildings of 5 or more units
18	La Honda	10.7% (±12.1 points)
19	Half Moon Bay	9.3% (±2.6 points)
20	Broadmoor	8.3% (±11.0 points)
21	Highlands	8.1% (±6.9 points)
22	West Menlo Park	2.7% (±3.4 points)
23	El Granada	1.6% (±3.7 points)
24 (tie)	Atherton	0.0% (±2.8 points)
24 (tie)	Hillsborough	0.0% (±1.9 points)
24 (tie)	Woodside	0.0% (±3.5 points)
24 (tie)	Baywood Park	0.0% (±11.8 points)
24 (tie)	Emerald Lake Hills	0.0% (±4.7 points)
24 (tie)	Ladera	0.0% (±13.5 points)
24 (tie)	Montara	0.0% (±5.9 points)

Showing 13 of 31 places in San Mateo 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 Atherton

How many homes are in Atherton?

Atherton, CA has an estimated 2,667 (±176) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Atherton houses or apartments?

97.3% are detached houses and 2.0% attached houses, while 0.7% are in buildings of two or more units.

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

0.7% of homes in Atherton 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 — Atherton town, 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 Atherton town, California (place:03092, 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.