What kinds of homes are in Mill Valley, CA?

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

Mill Valley, CA has 6,418 (±314) homes (2020–2024 American Community Survey).

That is about 1,342 homes per square mile of land.

69.7% are detached single-family houses.

8.2% are in buildings of two to four units.

13.3% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 6,418 (±314)
Detached houses: 69.7%
2–4 unit buildings: 8.2%
5+ unit buildings: 13.3%

Homes in Mill Valley by building size

Housing units by units in structure, 2020–2024
Building type	Mill Valley	Marin County	California	United States
Single-family, detached	69.7% (±4.6 points)	63.2%	57.0%	61.3%
Single-family, attached (townhouse, rowhouse)	8.7% (±2.5 points)	7.7%	7.4%	6.2%
2 units	5.1% (±2.6 points)	3.5%	2.4%	3.4%
3 or 4 units	3.1% (±1.4 points)	4.9%	5.4%	4.3%
5 to 9 units	4.5% (±2.6 points)	6.0%	5.7%	4.5%
10 to 19 units	3.2% (±2.0 points)	4.2%	4.9%	4.3%
20 or more units	5.6% (±2.1 points)	8.9%	13.6%	10.3%
Mobile home	0.0% (±0.7 points)	1.3%	3.5%	5.6%
Boat, RV, van, etc.	0.0% (±0.7 points)	0.3%	0.1%	0.1%

In Mill Valley, the share of homes in buildings of five or more units is lower than in Marin County (19.1%).

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 Mill Valley

Nearest places with a published estimate, compared with Mill Valley
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Mill Valley	—	13.3% (±3.9 points)	—
Alto	1.3 mi	29.1% (±29.7 points)	Not measurably different
Tamalpais-Homestead Valley	2.0 mi	2.0% (±1.3 points)	Lower
Kentfield	2.1 mi	8.6% (±3.5 points)	Not measurably different
Strawberry	2.2 mi	39.9% (±8.1 points)	Higher
Larkspur	2.3 mi	45.1% (±6.3 points)	Higher
Corte Madera	2.5 mi	13.7% (±4.9 points)	Not measurably different
Marin City	3.0 mi	55.9% (±15.5 points)	Higher
Ross	4.0 mi	0.0% (±7.8 points)	Lower

Nearby places with a measurably lower figure: Tamalpais-Homestead Valley, CA (2.0%), Ross, CA (0.0%).

Nearby places with a measurably higher figure: Strawberry, CA (39.9%), Larkspur, CA (45.1%), Marin City, CA (55.9%).

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 Marin County, place by place

Rank	Place	Homes in buildings of 5 or more units
4	San Rafael	31.6% (±3.0 points)
5	Alto	29.1% (±29.7 points)
6	Tiburon	21.2% (±6.5 points)
7	Novato	20.3% (±2.6 points)
8	Santa Venetia	14.4% (±8.6 points)
9	Corte Madera	13.7% (±4.9 points)
10 (tie)	Mill Valley	13.3% (±3.9 points)
10 (tie)	Sausalito	13.3% (±3.2 points)
12	Fairfax	11.1% (±5.0 points)
13	San Anselmo	9.7% (±3.2 points)
14	Kentfield	8.6% (±3.5 points)
15	Belvedere	2.6% (±4.3 points)
16	Tamalpais-Homestead Valley	2.0% (±1.3 points)

Showing 13 of 24 places in Marin 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 Mill Valley

How many homes are in Mill Valley?

Mill Valley, CA has an estimated 6,418 (±314) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Mill Valley houses or apartments?

69.7% are detached houses and 8.7% attached houses, while 21.5% are in buildings of two or more units.

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

8.2% of homes in Mill Valley 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 — Mill Valley 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 Mill Valley city, California (place:47710, 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.