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San Quentin State Prison Information

San Quentin State Prison is located in Marin County, in the northern part of San Francisco. It is a part of the California Department of Corrections, and Rehabilitation, or CDCR. San Quentin is a state prison that houses male inmates.

It first opened its doors on July 1852. It is one of the oldest prisons in California State. It also houses the largest and lone death row for inmates in the United States. Initially, inmates sentenced to death row were subject to death by lethal gas. Since 1996, this practice has been changed to death by lethal injection. The last execution was carried out at San Quentin State prison in 2006. It has housed and continues to house many infamous inmates.

San Quentin State Prison has also been featured in many movies, songs, television commercials, and other media.

San Quentin Contact Information

Inmates are not allowed to receive incoming calls. Inmates can make only outgoing calls to family members and or friends. Inmates make calls in one of two ways:

1) Calling someone collect -  This method puts the charges of the call on the receiver.

2) They may also use Global Tel*link, a prepaid service. GTL is a private company contracted by the CDCR.

Inmates may make 15-minute phone calls throughout the day, up until 10 pm each night.

San Quentin Number of Inmates

The prison has a capacity to house 3,082 inmates. At this point in time, 3,774 inmates live here.


San Quentin State Prison

 San Quentin, CA


Mailing Information

To send an inmate a letter, label the envelope as follows:

Inmate Name, ID number

San Quentin State Prison

San Quentin, CA 94974

San Quentin State Prison Address

San Quentin Visitation Hours

Visitors may visit inmates located in the general population category on the weekend, Saturdays and Sundays, between 7:30am-2: 30 pm.

Visitors must arrive at the state prison by 1:00 pm in order to visit an inmate. To visit any other inmate at San Quentin State Prison, you must book an appointment, up to seven days in advance. Scheduling of appointments may be done online. The application must be approved before visiting.


There is no fax number listed for San Quentin State Prison.


To contact the prison directly: (415) 454-1460

Warden Information

Ronald Davis is the current warden at San Quentin State Prison. He has held this position since 2014. He previously served as warden at the Valley State Prison in Chowchilla and deputy warden at the Avenal State Prison.

Warden Davis has an extensive background in corrections. He has held several notable positions such as sergeant, lieutenant, correctional officer, etc.

Management Information

The California Department of Corrections and Rehabilitation is the main administrative body that manages San Quentin State prison. The CDCR manages other programs such as:

- Juvenile Justice

- Rehabilitation Programs

- Facility Planning, Management, and Construction

- Division of Health Care Services

- Adult Parole Operations

The leadership team behind the CDCR is the Governor of California State Gavin Newsom and CDCR Secretary Ralph Diaz.

San Quentin State Prison Contact

San Quentin Institutional Programs

San Quentin State Prison operates several institutional programs its adult male inmates. Some of these are:

PIA- Furniture and mattress manufacturing, health facility maintenance and construction labor

Vocational- Plumbing, Electronics, Machine Shop, Computer Literacy, Building Maintenance

Other- Arts in Corrections, Youth Diversion, Drug & Alcohol Treatment, Bicycle Repair, Marin Shakespeare, Gardening, Veteran’s Programs, Health Awareness, Cultural Awareness, Yoga, Pen Pals, Anger Management, Youth Offender Program, Bicycle Repair, Religion, San Quentin TV and Radio, San Quentin News, Reentry, Environmental Conscientiousness

CDCR’s Division of Rehabilitative Programs- Include both in-prison and after prison programs such as:

- Acquisition of California ID cards

- Cognitive-Behavioral Treatment

- Employment Assistance and Placement

Family Liaison Services is a community organization where inmates and their families work closely with a Case Manager to assist inmates with pre-release preparation. Parenting and Creative Conflict Resolution courses are also held.

Academic Programs, Other Programs

Academic Programs: High School or GED, Adult Basic Education, Prison University Program, Distance Education for Bachelor and Associate Degree Programs, Literacy Program, Transitions Pre-Release

How to Find an Inmate in San Quentin State Prison?

To locate an inmate housed in San Quentin State Prison, you need to visit the CDCR’s homepage and follow these steps:

  1. Visit
  2. Select ‘Agreed and Proceed to Search’ located on the bottom of the page.
  3. This will take you to the inmate locator page.
  4. Enter the inmate’s CDCR number or the Last Name.
  5. Then click ‘Search for Inmate’

Please note, the results will only retrieve names of adult male inmates and NOT juvenile inmates.

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Search for anyone in the United States! 100% Confidential! Updated on December 5, 2021
Sensitive Information!