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San Quentin ZIP Code List — Marin County, CA

There are 2 unique ZIP codes in San Quentin, California. Area code: 415/628.
2
ZIP codes
0.46
sq mi land
0.36
sq mi water
415/628
area code
San Quentin, CA ZIP code map

About San Quentin, CA

San Quentin, California, is a small and unique community located within Marin County. This unincorporated area is best known for housing the notorious San Quentin State Prison, which adds a significant historical context to the locale. Despite its small size, San Quentin plays a vital role in California’s criminal justice system and has a character that is both intriguing and complex.

Location & geography

San Quentin is situated on the shores of San Francisco Bay, making it geographically significant within the region. The community is surrounded by notable cities such as Marin City, which is 2 miles away, Sausalito, located approximately 3 miles away, and San Rafael, about 4 miles away. The total land area is officially recorded as 0.00 square miles, indicating that its primary attribute is water access rather than traditional geographic expanses.

Community & economy

The character of San Quentin is heavily influenced by its association with the state prison, which is often a focal point in discussions about community identity. Daily life here is interspersed with the complexities of the prison system, which employs many residents and shapes local interactions. Despite its challenging backdrop, the community attracts visitors intrigued by its unique history and relationship with law enforcement and rehabilitation.

Transportation

San Quentin is accessible via Marin County’s well-maintained roadways, with nearby access to Highway 101 facilitating travel to various destinations in the Bay Area. The closest major airport is San Francisco International Airport, approximately 20 miles to the south, which serves as the primary transit hub for the region. Local public transit options connect residents to neighboring cities, adding to the community’s accessibility.

History

Founded in 1852, San Quentin has a long history associated with its prison, which is one of California's oldest correctional institutions. Over the years, the prison has been linked to various notable events and approaches to criminal justice, leading to significant changes in incarceration practices. The community surrounding the prison reflects its complex history, where discussions about reform and rehabilitation continue to evolve.

Did you know?

A surprising fact about San Quentin is that it hosts the only licensed college program within a California prison, allowing inmates to pursue degrees while incarcerated. This initiative underscores the community's focus on rehabilitation and education, setting it apart from typical prison environments.

ZIP codes for San Quentin, CA (2)
ZIP code City County Map
94964 San Quentin Marin View map
94974 San Quentin Marin View map
Frequently asked questions
What is the ZIP code for San Quentin, CA?
San Quentin, CA has one ZIP code: 94974.
What is the main ZIP code for San Quentin, CA?
The primary ZIP code for San Quentin, CA is 94974. The city uses area code 415 or 628 for phone service.
What county is San Quentin, CA in?
San Quentin is located in Marin County, California.
How many ZIP codes are in San Quentin, CA?
San Quentin, CA has 1 ZIP code.
What ZIP code covers San Quentin State Prison and the surrounding unincorporated area in Marin County?
San Quentin State Prison and the surrounding area are located in ZIP code 94974, which serves this unincorporated community in Marin County.
If I'm mailing a letter to a business or residence in San Quentin, CA, what ZIP code should I use?
All mail addressed to San Quentin, California should use the ZIP code 94974, as it is the only ZIP code serving this Marin County community.
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