San Quentin, CA
Marin County · California · United States
Home to 2,115 people across 0.456 square miles.
At a glance
94964 by the numbers
Every figure below comes from the 2019–2023 American Community Survey 5-Year Estimates, the Census Gazetteer, or is computed from those. Margins of error are shown where they matter.
Location
Where 94964 is
| Coordinates | 37.940595, -122.490712 |
|---|---|
| Time zone | America/Los_Angeles |
| County | Marin County |
| State | California (CA) |
| Land area | 0.456 mi² |
| Coordinate source | Census ZCTA internal point |
Local time
America/Los_Angeles
Current weather
Live from the National Weather Service
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Distance to major cities
Straight-line, computed from coordinates
| San Francisco, CA | 12.1 mi |
|---|---|
| Los Angeles, CA | 358.4 mi |
| San Diego, CA | 469.5 mi |
| Phoenix, AZ | 661.2 mi |
People
Who lives in 94964
2,115 residents in 110 households, averaging 19.23 people per household. The largest age group is 65+ at 21.8% of residents.
Age distribution
Share of residents by age band
Households
Composition and size
| Total households | 110 |
|---|---|
| Average household size | 19.23 |
| Family households | 13.6% |
| Living alone | 0.0% |
| Median age | 48 years |
| Households with internet | 100.0% |
Race & ethnicity
Census race categories. Hispanic or Latino origin is asked separately and overlaps these groups.
Income & work
What people earn in 94964
Income data is suppressed for this ZIP code.
Compared to the US
This ZIP against the national median
| Median household income | — ±— |
|---|---|
| Per capita income | $10,794 |
| Poverty rate | 26.2% |
| Unemployment rate | 0.0% |
| Labor force participation | 9.0% |
Household income distribution
Share of households in each bracket
Educational attainment among residents 25 and older: 1.7% hold a bachelor's degree or higher, 76.7% finished high school.
Housing
Homes and rent in 94964
Housing cost data is suppressed for this ZIP code.
Costs
Typical values
| Median home value | — |
|---|---|
| Median gross rent | —/mo |
| Median year built | 1954 |
| Housing units | 147 |
| Vacancy rate | 25.2% |
Own vs. rent
Of 110 occupied units
| Owner households | 0 |
|---|---|
| Renter households | 110 |
Building types
Units by structure size
Getting to work
How 94964 commutes
86.4% of workers drove alone, and the average one-way trip takes 22.3 minutes.
Mode of transport
Workers 16 and older
Travel time
Mean commute 22.3 minutes
Overview
Understanding ZIP code 94964
ZIP code 94964 is assigned to San Quentin, CA, and falls within Marin County. Like every US postal code, it began as a mail-routing device rather than a geographic boundary — the US Postal Service groups delivery routes under a single code so carriers and sorting equipment can process mail efficiently. Today it also serves as a practical shorthand for the area itself: roughly 2,115 people live inside it.
At 4,638 residents per square mile spread over 0.456 square miles, 94964 reads as a densely built-up area. It is a sparsely populated postal code, and density shapes almost everything else on this page — how people get to work, whether they own or rent, and what housing costs.
Living here
What life in San Quentin looks like
The building stock is dominated by detached single-family houses, which account for 100.0% of housing units here. The median construction year is 1954, making the housing here mid-century. The vacancy rate of 25.2% is high, which in many places reflects seasonal or second-home use rather than abandonment.
The population skews older than the national median, with a median age of 48 against 42 nationally. Households are relatively large at 19.23 people on average, with 13.6% classified as family households.
Getting to work takes 22.3 minutes on average one way. The dominant mode is drove alone at 86.4% of workers, while 13.6% walk. Commute patterns are one of the better proxies for how a place actually functions day to day.
Where to stay
Where to stay in San Quentin, CA
San Quentin is a built-up area, so you will generally find a mix of chain hotels near the main approach roads and a smaller number of independent properties closer to the centre. Staying in 94964 itself often costs less than an equivalent room in the nearest downtown while keeping you close to it.
For reference, San Francisco, CA is about 12.1 miles away in a straight line, which is worth factoring in if you are comparing a stay here against one closer to the city centre.
Availability and pricing change constantly, so the live search below will give you a more accurate picture than any figure we could publish here. It opens results for this area on Booking.com.
Opens Booking.com in a new tab. We are not affiliated with Booking.com and receive nothing from this link.
Practical uses
What ZIP code 94964 is used for
Beyond addressing mail, 94964 does a lot of quiet administrative work. Retailers use it to calculate shipping and sales tax at checkout. Insurers use it to set premiums, since risk profiles vary geographically. Employers and marketers use it to define service areas. Government agencies use it to route benefits and organise reporting. If you have ever been asked for a postal code by a form that clearly does not intend to send you anything, this is why.
For anyone weighing a move, 94964 offers a compact profile of San Quentin: 2,115 residents, 1.7% of adults holding a bachelor's degree or higher, and an unemployment rate of 0.0%. A handful of figures like these answer more relocation questions than most neighbourhood guides do.
One caution worth repeating: a postal code is not a neighbourhood. 94964 may cover parts of several distinct areas, and a single neighbourhood in San Quentin may be split across more than one code. Boundaries also shift as USPS adjusts delivery routes. Treat the figures here as describing a delivery area, which is what they actually measure.
Nearby
ZIP codes near 94964
The eight closest postal codes by centroid distance, each with its own full profile. You can also browse every California ZIP code or use the ZIP Express Lookup to search by city, county or time zone.
Other ZIP codes in San Quentin
San Quentin is served by 2 postal codes.
More in Marin County
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Questions
Common questions about 94964
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Can ZIP code 94964 change?
Methodology
Where this data comes from
- Postal geography — GeoNames open postal code database (CC BY 4.0), cross-checked against the US Census Gazetteer.
- Demographics, income, housing, commute — US Census Bureau, American Community Survey 2019–2023 5-Year Estimates, ZIP Code Tabulation Area 94964. Tables B01001, B01002, B01003, B02001, B03003, B08301, B08303, B11001, B15003, B17001, B19001, B19013, B19301, B23025, B25002, B25003, B25024, B25035, B25064, B25077, B28002.
- Land and water area — US Census Bureau 2023 Gazetteer Files.
- Weather — NOAA National Weather Service, fetched live in your browser.
- Map — OpenStreetMap contributors (ODbL).