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Federal Correctional Institution · Herlong, California

FCI Herlong

Security level
Medium + minimum camp
Medical care level
1 of 4
Mental health care level
1 of 4
Population
642
Phone
530-827-8000

Last checked: November 3, 2026 (BOP documents for this prison) Intel last checked: November 3, 2026 BOP status updated: Nov 3, 2026, 9:10 pm ET News updated: Nov 3, 2026, 4:49 am ET

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Herlong at a glance

Herlong is a medium-security federal prison (FCI) for men, with a federal prison camp (FPC). It is in Herlong, California, on the north side of Highway 395, about 42 miles south of Susanville and about 52 miles north of Reno, Nevada.

How many people
561 in the FCI and 81 at the camp (BOP, October 29, 2026).
Medical care level 1
Generally healthy people under 70 who need to see a clinician only every 6 to 12 months. Examples the BOP gives: mild asthma, diet-controlled diabetes, well-controlled high blood pressure. Click here to read the source: BOP "Institution Care Levels for Medical Assignment," February 13, 2024 (released under FOIA 2024-03455) ↗
Mental health care level 1
No regular mental health care. People with a major mental illness, or who take antipsychotic medication, are not ordinarily classified at this level. The BOP does not post care levels on its website. This list is dated February 13, 2024 and came out through a public records request. Click here to read the source: BOP "Institution Care Levels for Medical Assignment," February 13, 2024 (released under FOIA 2024-03455) ↗
Built for
The 2024 audit lists a capacity of 1151 at the FCI and 128 at the camp. The average population over the 12 months before the audit was 1432 at the FCI and 75 at the camp. Click here to read the source: PREA audit report, FCI Herlong (onsite April 9 to 11, 2024) ↗
Ages
On the first day of the 2024 audit, ages ran from 19 to 69. Click here to read the source: PREA audit report, FCI Herlong (onsite April 9 to 11, 2024) ↗
Average stay
374.6 days at the FCI and 283.3 days at the camp. Click here to read the source: PREA audit report, FCI Herlong (onsite April 9 to 11, 2024) ↗

The BOP's own page for FCI Herlong.