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.
To contact the Department of Corrections and Rehabilitation for other types of information, please go to: Contact CDCR.
For questions pertaining to CDCR adult population statistical reports only, please contact the Data Analysis Unit at: Data Analysis Unit Contact Form.
To locate an inmate within the California Department of Corrections: Inmate Locator / ID Warrants.
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