What kinds of homes are in South San Francisco, CA?

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

South San Francisco, CA has 23,515 (±660) homes (2020–2024 American Community Survey).

That is about 2,555 homes per square mile of land.

58.5% are detached single-family houses.

6.0% are in buildings of two to four units.

24.4% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 23,515 (±660)
Detached houses: 58.5%
2–4 unit buildings: 6.0%
5+ unit buildings: 24.4%

Homes in South San Francisco by building size

Housing units by units in structure, 2020–2024
Building type	South San Francisco	San Mateo County	California	United States
Single-family, detached	58.5% (±2.3 points)	55.3%	57.0%	61.3%
Single-family, attached (townhouse, rowhouse)	9.6% (±1.1 points)	8.7%	7.4%	6.2%
2 units	1.8% (±0.6 points)	2.0%	2.4%	3.4%
3 or 4 units	4.2% (±1.0 points)	4.0%	5.4%	4.3%
5 to 9 units	3.7% (±1.0 points)	5.6%	5.7%	4.5%
10 to 19 units	4.0% (±1.2 points)	6.1%	4.9%	4.3%
20 or more units	16.7% (±1.8 points)	17.0%	13.6%	10.3%
Mobile home	1.2% (±0.7 points)	1.1%	3.5%	5.6%
Boat, RV, van, etc.	0.3% (±0.5 points)	0.1%	0.1%	0.1%

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

It is not measurably different from California (24.2%).

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

Homes in buildings of 5 or more units in places near South San Francisco

Nearest places with a published estimate, compared with South San Francisco
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
South San Francisco	—	24.4% (±2.4 points)	—
Brisbane	1.5 mi	36.5% (±12.9 points)	Not measurably different
San Bruno	3.6 mi	30.6% (±3.2 points)	Higher
Millbrae	4.1 mi	30.8% (±3.8 points)	Higher
Colma	4.4 mi	17.9% (±12.6 points)	Not measurably different
Burlingame	4.6 mi	43.5% (±4.0 points)	Higher
Daly City	5.8 mi	25.7% (±1.8 points)	Not measurably different
Broadmoor	6.3 mi	8.3% (±11.0 points)	Lower
Pacifica	6.5 mi	14.6% (±2.3 points)	Lower

Nearby places with a measurably lower figure: Broadmoor, CA (8.3%), Pacifica, CA (14.6%).

Nearby places with a measurably higher figure: San Bruno, CA (30.6%), Millbrae, CA (30.8%), Burlingame, CA (43.5%).

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
7	East Palo Alto	33.5% (±4.4 points)
8	Millbrae	30.8% (±3.8 points)
9	San Bruno	30.6% (±3.2 points)
10	Menlo Park	27.8% (±3.3 points)
11	Daly City	25.7% (±1.8 points)
12	San Carlos	25.1% (±3.2 points)
13	South San Francisco	24.4% (±2.4 points)
14	North Fair Oaks	18.0% (±4.1 points)
15	Colma	17.9% (±12.6 points)
16	Pacifica	14.6% (±2.3 points)
17	Portola Valley	13.1% (±7.8 points)
18	La Honda	10.7% (±12.1 points)
19	Half Moon Bay	9.3% (±2.6 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 South San Francisco

How many homes are in South San Francisco?

South San Francisco, CA has an estimated 23,515 (±660) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in South San Francisco houses or apartments?

58.5% are detached houses and 9.6% attached houses, while 30.4% are in buildings of two or more units.

How many two-family and small multifamily homes are in South San Francisco?

6.0% of homes in South San Francisco 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 — South San Francisco 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 South San Francisco city, California (place:73262, 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.