California has 19 federal prisons: 9.8% of the US total of 193. That ranks #2 by count and #22 per person (0.05 per 100,000 residents) of 51.
Source: HIFLD Prison Boundaries (U.S. Department of Homeland Security), final release, 2025. Every Bureau of Prisons facility (FCI, USP, FPC, FMC, MDC, MCC, FDC, FTC) at the centre of its boundary, with its city. A complex’s prison and its camp count separately, so the total is higher than the Bureau’s count of institutions. ICE processing centers and tribal jails are not included.
Licence: U.S. government data: no copyright, free to reuse
Local blogs, news sites, parks pages: embed the live interactive map with one snippet. Attribution stays on, that's the whole deal.
<iframe src="https://get-instamaps.com/embed/rankings/federal-prisons/california" width="100%" height="440" style="border:2px solid #111" loading="lazy" title="California federal prisons map — InstaMaps"></iframe>| # | Name | Details |
|---|---|---|
| 1 | FCI Dublin | Dublin |
| 2 | FCI Dublin Camp | Dublin |
| 3 | FCI Lompoc | Lompoc |
| 4 | FCI Mendota | Mendota |
| 5 | FCI Mendota Camp | Mendota |
| 6 | FCI Terminal Island | San Pedro |
| 7 | FCI Victorville Medium I | Victorville |
| 8 | FCI Victorville Medium I Camp | Victorville |
| 9 | FCI Victorville Medium II | Victorville |
| 10 | Herlong FCI | Herlong |
| 11 | Herlong FCI Camp | Herlong |
| 12 | MCC San Diego | San Diego |
| 13 | MDC Los Angeles | Los Angeles |
| 14 | USP Atwater | Atwater |
| 15 | USP Atwater Camp | Atwater |
| 16 | USP Lompoc | Lompoc |
| 17 | USP Lompoc Camp | Lompoc |
| 18 | USP Lompoc North Camp | Lompoc |
| 19 | USP Victorville | Victorville |
Names as the source gives them. Coordinates for every one are in the CSV.
"California has 19 federal prisons, #2 in the US by count and #22 per person (HIFLD Prison Boundaries, 2025, mapped by InstaMaps)." Free to quote with a link to this page. Population: US Census 2024 estimates.