List of United States federal prisons
The Federal Bureau of Prisons of the United States Department of Justice classifies prisons into seven categories:
- United States penitentiaries
- Federal correctional institutions
- Private correctional institutions
- Federal prison camps
- Administrative facilities
- Federal correctional complexes
- Former Federal facilities
United States penitentiaries
Most United States penitentiaries are high-security facilities, which have highly secured perimeters with walls or reinforced fences, multiple and single-occupant cell housing, the highest staff-to-inmate ratio, and close control of inmate movement. The most restrictive facility in the federal prison system is USP Florence ADMAX, the federal supermax prison, which holds inmates who are considered the most dangerous and in need of the tightest controls.USP Leavenworth, USP Lewisburg, USP Lompoc, and USP Marion were originally operated as high-security facilities but have since been downgraded to medium-security facilities. USP Atlanta, also a former high-security facility, is presently a low-security facility with the primary purpose of holding inmates until they are transferred to other institutions. In 2024, all former USP facilities were renamed to FCI facilities to more accurately reflect their security level. Many current USPs include minimum-security satellite camps on the same property and under the same administration as the higher-security units.
| Name | Location | Inmate gender | Security class | Population | |
| United States Penitentiary, Administrative Maximum Facility | Colorado | Male | Administrative | 382 | |
| United States Penitentiary, Allenwood | Pennsylvania | Male | High | 304 | |
| United States Penitentiary, Atwater | California | Male | High | 1,103 | |
| United States Penitentiary, Beaumont | Texas | Male | High | 1,346 | |
| United States Penitentiary, Big Sandy | Kentucky | Male | High | 1,236 | |
| United States Penitentiary, Canaan | Pennsylvania | Male | High | 1,379 | |
| United States Penitentiary, Coleman | Florida | Male | High | 1,345 982 | |
| United States Penitentiary, Florence | Colorado | Male | High | 786 | |
| United States Penitentiary, Hazelton | West Virginia | Male | High | 1,398 | |
| United States Penitentiary, Lee | Virginia | Male | High | 1,198 | |
| United States Penitentiary, McCreary | Kentucky | Male | High | 1,355 | |
| United States Penitentiary, Pollock | Louisiana | Male | High | 855 | |
| United States Penitentiary, Terre Haute | Indiana | Male | High | 1,136 | |
| United States Penitentiary, Tucson | Arizona | Male | High | 975 | |
| United States Penitentiary, Victorville | California | Male | High | 1,119 | |
| - | - | Male | High | - | - |
Federal correctional institutions
Federal correctional institutions are medium- and low-security facilities, which have strengthened perimeters, mostly cell-type housing, a wide variety of work and treatment programs. FCI Terre Haute contains a more restrictive section designated as a communication management unit for inmates considered high-security risks. FCI Marion contains one of two highly restrictive communication management units, which holds inmates under stricter controls.| Name | Location | Inmate gender | Security class | Population | |
| Federal Correctional Institution, Aliceville | Alabama | Female | Low | 1,137 | |
| Federal Correctional Institution, Allenwood Low | Pennsylvania | Male | Low | 1,030 | |
| Federal Correctional Institution, Allenwood Medium | Pennsylvania | Male | Medium | 1,126 | |
| Federal Correctional Institution, Atlanta | Georgia | Male | Low | 1,854 | |
| Federal Correctional Institution, Ashland | Kentucky | Male | Low | 1,163 | |
| Federal Correctional Institution, Bastrop | Texas | Male | Low | 1,013 | |
| Federal Correctional Institution, Beaumont Low | Texas | Male | Low | 1,615 | |
| Federal Correctional Institution, Beaumont Medium | Texas | Male | Medium | 1,182 | |
| Federal Correctional Institution, Beckley | West Virginia | Male | Medium | 1,534 | |
| Federal Correctional Institution, Bennettsville | South Carolina | Male | Medium | 1,515 | |
| Federal Correctional Institution, Berlin | New Hampshire | Male | Medium | 805 | |
| Federal Correctional Institution, Big Spring | Texas | Male | Low | 496 | |
| Federal Correctional Institution, Butner Low | North Carolina | Male | Low | 1,010 | |
| Federal Correctional Institution, Butner Medium I | North Carolina | Male | Medium | 533 | |
| Federal Correctional Institution, Butner Medium II | North Carolina | Male | Medium | 1,549 | |
| Federal Correctional Institution, Coleman Low | Florida | Mixed | Low | 1,601 | |
| Federal Correctional Institution, Coleman Medium | Florida | Male | Medium | 1,496 | |
| Federal Correctional Institution, Cumberland | Maryland | Male | Medium | 884 | |
| Federal Correctional Institution, Danbury | Connecticut | Mixed | Low | 1,132 | |
| Federal Correctional Institution, Edgefield | South Carolina | Male | Medium | 1,251 | |
| Federal Correctional Institution, El Reno | Oklahoma | Male | Medium | 1,001 | |
| Federal Correctional Institution, Elkton | Ohio | Male | Low | 1,605 | |
| Federal Correctional Institution, Englewood | Colorado | Male | Low | 960 | |
| Federal Correctional Institution, Estill | South Carolina | Male | Medium | 102 | |
| Federal Correctional Institution, Fairton | New Jersey | Male | Medium | 728 | |
| Federal Correctional Institution, Florence | Colorado | Male | Medium | 1,044 | |
| Federal Correctional Institution, Forrest City Low | Arkansas | Male | Low | 1,621 | |
| Federal Correctional Institution, Forrest City Medium | Arkansas | Male | Medium | 1,618 | |
| Federal Correctional Institution, Fort Dix | New Jersey | Male | Low | 3,859 | |
| Federal Correctional Institution, Gilmer | West Virginia | Male | Medium | 1,177 | |
| Federal Correctional Institution, Greenville | Illinois | Mixed | Medium | 1,177 | |
| Federal Correctional Institution, Hazelton | West Virginia | Mixed | Medium | 1,537 | |
| Federal Correctional Institution, Herlong | California | Male | Medium | 865 | |
| Federal Correctional Institution, Jesup | Georgia | Male | Medium | 1,055 | |
| Federal Correctional Institution, La Tuna | Texas | Male | Low | 550 | |
| Federal Correctional Institution, Leavenworth | Kansas | Male | Medium | 1,405 | |
| Federal Correctional Institution, Lewisburg | Pennsylvania | Male | Medium | 520 | |
| Federal Correctional Institution, Lompoc I | California | Male | Low | 886 | |
| Federal Correctional Institution, Lompoc II | California | Male | Low | 1,924 | |
| Federal Correctional Institution, Loretto | Pennsylvania | Male | Low | 781 | |
| Federal Correctional Institution, Manchester | Kentucky | Male | Medium | 1,009 | |
| Federal Correctional Institution, Marianna | Florida | Mixed | Medium | 890 | |
| Federal Correctional Institution, Marion | Illinois | Male | Medium | 1,005 | |
| Federal Correctional Institution, McDowell | West Virginia | Male | Medium | 1,483 | |
| Federal Correctional Institution, McKean | Pennsylvania | Male | Medium | 919 | |
| Federal Correctional Institution, Memphis | Tennessee | Male | Low | 996 | |
| Federal Correctional Institution, Mendota | California | Male | Medium | 628 | |
| Federal Correctional Institution, Miami | Florida | Male | Low | 824 | |
| Federal Correctional Institution, Milan | Michigan | Male | Low | 1,536 | |
| Federal Correctional Institution, Oakdale I | Louisiana | Male | Low | 971 | |
| Federal Correctional Institution, Oakdale II | Louisiana | Male | Low | 994 | |
| Federal Correctional Institution, Otisville | New York | Male | Medium | 746 | |
| Federal Correctional Institution, Oxford | Wisconsin | Male | Low | 1,157 | |
| Federal Correctional Institution, Pekin | Illinois | Mixed | Medium | 1,031 | |
| Federal Correctional Institution, Petersburg Low | Virginia | Male | Low | 467 | |
| Federal Correctional Institution, Petersburg Medium | Virginia | Male | Medium | 1,654 | |
| Federal Correctional Institution, Phoenix | Arizona | Mixed | Medium | 853 | |
| Federal Correctional Institution, Pollock | Louisiana | Male | Medium | 1,439 | |
| Federal Correctional Institution, Ray Brook | New York | Male | Medium | 856 | |
| Federal Correctional Institution, Safford | Arizona | Male | Low | 663 | |
| Federal Correctional Institution, Sandstone | Minnesota | Male | Low | 1,233 | |
| Federal Correctional Institution, Schuylkill | Pennsylvania | Male | Medium | 1,002 | |
| Federal Correctional Institution, Seagoville | Texas | Male | Low | 1,357 | |
| Federal Correctional Institution, Sheridan | Oregon | Male | Medium | 1,240 | |
| Federal Correctional Institution, Talladega | Alabama | Male | Medium | 958 | |
| Federal Correctional Institution, Tallahassee | Florida | Mixed | Low | 1,186 | |
| Federal Correctional Institution, Terminal Island | California | Male | Low | 937 | |
| Federal Correctional Institution, Terre Haute | Indiana | Male | Medium | 1,112 | |
| Federal Correctional Institution, Texarkana | Texas | Male | Low | 1,108 | |
| Federal Correctional Institution, Three Rivers | Texas | Male | Medium | 1,058 | |
| Federal Correctional Institution, Thomson | Illinois | Male | Low | 1,967 | |
| Federal Correctional Institution, Tucson | Arizona | Mixed | Medium | 433 | |
| Federal Correctional Institution, Victorville Medium I | California | Male | Medium | 1,340 | |
| Federal Correctional Institution, Victorville Medium II | California | Male | Medium | 1,254 | |
| Federal Correctional Institution, Waseca | Minnesota | Female | Low | 855 | |
| Federal Correctional Institution, Williamsburg | South Carolina | Male | Medium | 1,357 | |
| Federal Correctional Institution, Yazoo City Low I | Mississippi | Male | Low | 1,566 | |
| Federal Correctional Institution, Yazoo City Low II | Mississippi | Male | Low | 1,549 | |
| Federal Correctional Institution, Yazoo City Medium | Mississippi | Male | Medium | 1,498 |