Kern Valley State Prison
Kern Valley State Prison
CDCR Adult InstitutionMailing Address
Include full name, CDCR Number and last known housing.
Facility A: P.O. Box 5101, Delano, CA 93216
Facility B: P.O. Box 5102, Delano, CA 93216
Facility C: P.O. Box 5103, Delano, CA 93216
Facility D: P.O. Box 5104, Delano, CA 93216
Facility M: P.O. Box 5105, Delano, CA 93216
ASU1: P.O. Box 5107, Delano, CA 93216
ASU2: P.O. Box 5106, Delano, CA 93216
Facility A: P.O. Box 5101, Delano, CA 93216
Facility B: P.O. Box 5102, Delano, CA 93216
Facility C: P.O. Box 5103, Delano, CA 93216
Facility D: P.O. Box 5104, Delano, CA 93216
Facility M: P.O. Box 5105, Delano, CA 93216
ASU1: P.O. Box 5107, Delano, CA 93216
ASU2: P.O. Box 5106, Delano, CA 93216
Physical Address
3000 West Cecil Avenue, Delano, CA 93216-6000
Phone
Governing Agency
California Department of Corrections and Rehabilitation (CDCR)
Inmate ID
CDCR Number — Required
Last Verified
September 25, 2026
Facility Mailing and Service Information
Individuals may contact California state-prison incarcerated people by U.S. mail. Incoming letters are opened and inspected for contraband and then forwarded to the incarcerated person.
CDCR recommends including the incarcerated person's full name, CDCR Number, institution name, and the correct P.O. Box/housing address. Because many institutions use housing-specific P.O. Boxes, confirm the person's current location and housing before mailing.
Source:
www.cdcr.ca.gov
CDCR recommends including the incarcerated person's full name, CDCR Number, institution name, and the correct P.O. Box/housing address. Because many institutions use housing-specific P.O. Boxes, confirm the person's current location and housing before mailing.
Source:
www.cdcr.ca.gov
Last verified: September 25, 2026
CDCR guidance states that first-class mail may include photographs, but Polaroid photographs are not accepted. Photographs remain subject to inspection, content rules and personal-property restrictions.
The statewide guidance reviewed does not publish one numeric photo limit that applies to every institution, so check local institution requirements if sending a large number of photographs.
Source:
www.cdcr.ca.gov
The statewide guidance reviewed does not publish one numeric photo limit that applies to every institution, so check local institution requirements if sending a large number of photographs.
Source:
www.cdcr.ca.gov
Last verified: September 25, 2026
CDCR guidance states that books must be soft cover and sent directly from a departmentally approved book distributor, bookstore or publisher.
Personal property packages must be sent by an approved vendor; individuals generally may not mail ordinary property packages directly. Package privileges and frequency depend on the incarcerated person's privilege group and current rules.
Sources:
www.cdcr.ca.gov
www.cdcr.ca.gov
Personal property packages must be sent by an approved vendor; individuals generally may not mail ordinary property packages directly. Package privileges and frequency depend on the incarcerated person's privilege group and current rules.
Sources:
www.cdcr.ca.gov
www.cdcr.ca.gov
Last verified: September 25, 2026
CDCR provides approved methods for sending funds to an incarcerated person. Before sending funds, confirm the incarcerated person's full name, CDCR Number and current institution.
When a facility publishes a separate money-order address, use that address rather than the general inmate correspondence address. Electronic deposit methods may also be available through CDCR-approved services.
Source:
www.cdcr.ca.gov
When a facility publishes a separate money-order address, use that address rather than the general inmate correspondence address. Electronic deposit methods may also be available through CDCR-approved services.
Source:
www.cdcr.ca.gov
Last verified: September 25, 2026
Adult visitors must be approved before visiting. CDCR uses the CDCR Form 106 Visiting Questionnaire process. The incarcerated person normally sends the form to the prospective visitor, and the completed application is returned to the institution for review.
After approval, review the institution's current visiting status and scheduling requirements before traveling. Visiting can be modified or suspended because of emergencies or institution operations.
Sources:
www.cdcr.ca.gov
www.cdcr.ca.gov
After approval, review the institution's current visiting status and scheduling requirements before traveling. Visiting can be modified or suspended because of emergencies or institution operations.
Sources:
www.cdcr.ca.gov
www.cdcr.ca.gov
Last verified: September 25, 2026
How to Address Your Letter
Before mailing, verify the incarcerated person's current institution and CDCR Number using California Incarcerated Records and Information Search (CIRIS).
CDCR recommends that the envelope include:
- Incarcerated person's full name
- CDCR Number
- Institution name
- Correct P.O. Box / housing address when applicable
- City, CA ZIP
Many California institutions use different inmate P.O. Boxes for different facilities or housing areas. Use the facility-specific mailing address shown on this page and confirm the current housing when needed.
Source: www.cdcr.ca.gov
CDCR recommends that the envelope include:
- Incarcerated person's full name
- CDCR Number
- Institution name
- Correct P.O. Box / housing address when applicable
- City, CA ZIP
Many California institutions use different inmate P.O. Boxes for different facilities or housing areas. Use the facility-specific mailing address shown on this page and confirm the current housing when needed.
Source: www.cdcr.ca.gov
About Kern Valley State Prison
Kern Valley State Prison (KVSP) is an adult correctional facility operated by the California Department of Corrections and Rehabilitation in Delano, California. Use CIRIS to confirm the incarcerated person's current location and CDCR Number before mailing.