Federal prisons in California
The Federal Bureau of Prisons runs 10 prisons in California. Pick one for its visiting hours and rules, the inmate mailing address, how to send money, what to wear, and the latest news. Not sure where your loved one is? Search the federal inmate locator.
| Prison | Security | City | People |
|---|---|---|---|
| FCI Herlong with a minimum-security camp |
Medium | Herlong | 642 |
| FCI Lompoc I | Low | Lompoc | 883 |
| FCI Lompoc II with a minimum-security camp |
Low | Lompoc | 2,182 |
| FCI Mendota with a minimum-security camp |
Medium | Mendota | 690 |
| FCI Victorville Medium I with a minimum-security camp |
Medium | Victorville | 1,551 |
| FCI Victorville Medium II | Medium | Victorville | 1,341 |
| MCC San Diego | Administrative | San Diego | 537 |
| MDC Los Angeles | Administrative | Los Angeles | 839 |
| USP Atwater with a minimum-security camp |
High | Atwater | 1,325 |
| USP Victorville | High | Victorville | 969 |
Population from the BOP's own count, checked November 5, 2026.
Some of these are part of a federal correctional complex: FCC Lompoc, FCC Victorville. Mail and money always go to the exact prison, never the complex.