San Quentin State Prison (SQ) is located in the city of San Quentin, California which has a population of 6,439 (as of 2016) residents. This prison has a capacity of 3,082 inmates, which means this is the maximum amount of beds per facility. San Quentin State Prison (SQ) began processing inmates once the original construction was completed and service started in 1852 but may have been expanded or renovated since that time, to accommodate the growing prison population. There is an average of 3,774 inmates currently serving time at this facility. Prisoners are housed in separate areas depending on the crimes they committed, their current risk assessment, and their behavior. This facility is currently under the supervision of Ronald Davis and houses male offenders.

If you have a family or loved one that is currently incarcerated at San Quentin State Prison (SQ), the first thing you should do is contact the prison for information on the inmate. Based on the information you are provided, you would then contact either a criminal defense lawyer or a bail bond service. They will provide you with vital information which can be used to defend an individual and in a lot of cases get them released from detention while awaiting trial.

San Quentin State Prison (SQ) Facility and Inmate Contact Information:

Phone Number to Reach this Facility is:

415-454-1460

Send Mail to the Facility (not inmates):

San Quentin State Prison (SQ)
1 Main Street
San Quentin, CA 94964

To Send Mail to an Inmate at San Quentin State Prison (SQ):

(please get a list of acceptable mail from the facility)

San Quentin State Prison (SQ)
Inmate Name, Inmate ID #
1 Main Street
San Quentin, CA 94964

Send Money to an Inmate at San Quentin State Prison (SQ)

Locate an Inmate at San Quentin State Prison (SQ)

Visitation Information for San Quentin State Prison (SQ)