What kinds of homes are in Petaluma, CA?

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

Petaluma, CA has 25,107 (±463) homes (2020–2024 American Community Survey).

That is about 1,742 homes per square mile of land.

69.6% are detached single-family houses.

4.6% are in buildings of two to four units.

16.1% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 25,107 (±463)
Detached houses: 69.6%
2–4 unit buildings: 4.6%
5+ unit buildings: 16.1%

Homes in Petaluma by building size

Housing units by units in structure, 2020–2024
Building type	Petaluma	Sonoma County	California	United States
Single-family, detached	69.6% (±2.6 points)	66.8%	57.0%	61.3%
Single-family, attached (townhouse, rowhouse)	6.5% (±1.0 points)	8.0%	7.4%	6.2%
2 units	1.8% (±0.8 points)	2.4%	2.4%	3.4%
3 or 4 units	2.8% (±0.8 points)	4.4%	5.4%	4.3%
5 to 9 units	3.0% (±1.1 points)	3.7%	5.7%	4.5%
10 to 19 units	2.1% (±0.7 points)	2.7%	4.9%	4.3%
20 or more units	11.0% (±1.9 points)	7.1%	13.6%	10.3%
Mobile home	3.1% (±0.6 points)	4.8%	3.5%	5.6%
Boat, RV, van, etc.	0.0% (±0.2 points)	0.2%	0.1%	0.1%

In Petaluma, the share of homes in buildings of five or more units is higher than in Sonoma County (13.5%).

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 Petaluma

Nearest places with a published estimate, compared with Petaluma
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Petaluma	—	16.1% (±2.3 points)	—
Penngrove	4.6 mi	2.8% (±5.1 points)	Lower
Temelec	7.2 mi	0.0% (±6.2 points)	Lower
Cotati	7.4 mi	17.2% (±6.7 points)	Not measurably different
Rohnert Park	8.3 mi	29.4% (±3.4 points)	Higher
El Verano	8.4 mi	0.0% (±5.2 points)	Lower
Boyes Hot Springs	9.0 mi	6.8% (±4.7 points)	Lower
Glen Ellen	9.1 mi	0.0% (±11.1 points)	Lower
Eldridge	9.2 mi	3.5% (±8.6 points)	Lower

Nearby places with a measurably lower figure: Penngrove, CA (2.8%), Temelec, CA (0.0%), El Verano, CA (0.0%).

Nearby places with a measurably higher figure: Rohnert Park, CA (29.4%).

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 Sonoma County, place by place

Rank	Place	Homes in buildings of 5 or more units
1	Rohnert Park	29.4% (±3.4 points)
2	Santa Rosa	18.0% (±1.3 points)
3	Cotati	17.2% (±6.7 points)
4	Larkfield-Wikiup	16.6% (±6.2 points)
5	Petaluma	16.1% (±2.3 points)
6	Cloverdale	15.6% (±6.1 points)
7	Sebastopol	15.0% (±4.1 points)
8	Fetters Hot Springs-Agua Caliente	14.0% (±6.8 points)
9	Sonoma	11.4% (±3.6 points)
10	Healdsburg	10.0% (±4.7 points)
11	Windsor	7.5% (±2.2 points)

Showing 11 of 24 places in Sonoma 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 Petaluma

How many homes are in Petaluma?

Petaluma, CA has an estimated 25,107 (±463) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Petaluma houses or apartments?

69.6% are detached houses and 6.5% attached houses, while 20.7% are in buildings of two or more units.

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

4.6% of homes in Petaluma 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 — Petaluma 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 Petaluma city, California (place:56784, 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.