Cascade County Jail, MT

Federal facility (USMS / BOP / DOD / MOC) used for ICE detention Great Falls, MT Operated by USMS_IGA Source: Vera Institute of Justice ICE Detention Trends Dashboard (Feb 2026 active snapshot)

Cascade County Jail, MT is a federal facility (USMS / BOP / DOD / MOC) used for ICE detention in Great Falls, Montana. Federal facilities — operated by the U.S. Marshals Service, Bureau of Prisons, Department of Defense, or Mariana Office of Corrections — are sometimes used to hold ICE detainees alongside federal pretrial and sentenced populations.

Operated by USMS_IGA. Average daily population in February 2026: 3.