Offender Information Services Branch
The Offender Information Services Branch (OISB) is the Department’s primary provider of summary statistical information about inmates and parolees. The OISB compiles statistical population and demographic reports , and prepares legislative population projections.
Obtaining Additional Information:
For information regarding contacting an inmate, please go to: How to Contact an Inmate.
If you are trying to locate an inmate at a CDCR facility please use the CDCR Inmate Locator.
If you have an issue or concern, about a situation in a state prison, please contact the Office of the Ombudsman.
For additional information view the CDCR Contact Us page.
Reports & Research
- Annual Reports
- Office of Research
- Offender Information Services Branch (OISB)
- Adult Research Branch (ARB) Reports
- Juvenile Justice (DJJ) Research & Statistics
- Population Reports
- Offender Information Reports
- BOPH Case Load Statistics
- Environmental Documents
Office of Research
1515 S Street
Sacramento, CA 95811-7243
Phone: (916) 445-1310
FAX: (916) 323-2998
Office of Research website