San Quentin State Prison Inmate Mail

How Do You Mail an Inmate in the CDCR?

CDCR Inmate Mail Instructions

Individuals are free to contact any CDCR inmate by mail.

Incoming letters are opened and inspected for contraband and then forwarded to the inmate. To ensure prompt processing the following information should be included on the envelope:

Inmate’s full name, CDC#
San Quentin State Prison
P.O. Box Housing (preferable)
City, CA   ZIP

To get an inmate’s CDCR# or housing assignment, individuals should call the Public Information Officer (PIO) or contact the San Quentin State Prison at the phone number listed above.

Access California Incarcerated Records and Information Search (CIRIS).

Those people who don’t know where an inmate is housed may contact the Department’s ID Unit at 916-445-6713.

A date of birth will be required if the person they are inquiring about has a common name.