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United States · Colorado · Florence

Fci Florence

Federal prisonMediummaleOvercrowded (133%)LowHigh
Verified
Aging · 5mo ago
Sources last reviewed on

Data is aggregated from public sources and may be incomplete or out of date. Always verify with primary sources before acting on any figure. See data sources.

For families

How to send mail, money, and visit Fci Florence

Step-by-step guidance using the United States system — addresses, money services, visit booking, what to bring on your first visit.

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Photograph of Fci Florence

Fci Florence is a federal prison located in Fremont County, Colorado. Rated capacity: 746. Reported population: 993. Security level: Medium. Data sourced from the HIFLD Prison Boundaries open dataset.

Background

The United States Penitentiary, Administrative Maximum Facility (abbreviated as USP Florence ADMAX; commonly known as ADX Florence, Florence Supermax, and the Alcatraz of the Rockies) is a United States federal prison for men in Fremont County, Colorado, United States. It is operated by the Federal Bureau of Prisons, a division of the United States Department of Justice. The prison houses some of the most dangerous criminals in the United States. ADX Florence, constructed in 1994 and opened the following year, is classed as a supermax or "control unit" prison, that provides a higher, more controlled level of custody than a regular maximum security prison (or "high security", as it is called in the federal prison system). ADX Florence forms part of the Federal Correctional Complex, Florence (FCC Florence), which is situated on 49 acres (20 hectares) of land and houses different facilities with varying degrees of security, including the adjacent United States Penitentiary, Florence High.

Source: Wikipedia article lead, CC-BY-SA.

Capacity

746

Current population

993

Occupancy

133%

Year opened

1994

Operational

Figures from official sources · verified 2 Jun 2026 · methodology

Facility profile

Population held

male

Opened

1994

Region

Colorado

Security level

Medium

Death-row facility

No

Conditions

No conditions summary available yet.

Visiting

Visiting days and hours are set by the Warden and vary by housing unit; consult the facility's official visiting regulations for the current schedule. All visitors must be on the inmate's approved visitor list (submitted on BOP form BP-A0629) and present government-issued photo ID. Dress-code and contraband restrictions apply — review the visiting regulations before arriving. Call 719-784-9100 to confirm hours before your visit. Full regulations: https://www.bop.gov/locations/institutions/flf/

Mailing

Address mail to: [Inmate Name & Register Number], FCI Florence, PO BOX 6000, Florence, CO 81226. No cash, staples, or metal fasteners. Books must be sent directly from a publisher or approved retailer. Photos must not be Polaroid and may not exceed limits set by policy. Money orders payable to the inmate's name and register number; or use Western Union QuickCollect to the BOP Trust Fund. TRULINCS (CorrLinks) provides email where the inmate has subscribed.

Practical info

Inmate funds via Western Union QuickCollect to the BOP Trust Fund (receiver: inmate name, prisoner ID, BOP Trust Fund). Email service via CorrLinks where the inmate has subscribed.

Known issues

No major issues documented in our database.

Contact & address

5880 State Highway 67 South, Florence 81226

Conditions Risk Score

Derived signal — not a judgement. How it's calculated

12/100
Low concern12/100
Overcrowding
12/30
Oversight reports
0/30
Structural flags
0/15
Death signals
0/15
Conditions text
0/10

What the score is responding to:

  • · Operating at 133% of design capacity

This facility scores 12. The national average across 7,437 scored United States facilities is 2 — 10 points above national average.

Related facilities

All in United States →

Same country, matched on type + security level where possible.

Compared to other facilities in United States

7436 peers
Occupancythis: 133% · peers avg: 93% (+43%)
Capacity (beds)this: 746 · peers avg: 547 (+36%)

Data completeness

90%

How many of our profile fields are populated. We surface this so families and researchers know the limits.

Sources

Cite this page

Under CC-BY-4.0. Include the URL and access date; the site is a living reference and entries can change.

APA
World Prisons. (2026). Fci Florence. Retrieved October 20, 2026, from https://worldprisons.com/prisons/fci-florence
Chicago
"Fci Florence." World Prisons. Accessed October 20, 2026. https://worldprisons.com/prisons/fci-florence.
BibTeX
@misc{worldprisons-fci-florence,
  author = {{World Prisons}},
  title = {Fci Florence},
  year = {2026},
  url = {https://worldprisons.com/prisons/fci-florence},
  urldate = {2026-10-20}
}