Roman Catholic Diocese of Helena

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Diocese of Helena
Dioecesis Helenensis
CoA Roman Catholic Diocese of Helena.svg
Country United States
Territory Lewis and Clark, Teton, Flathead, Lincoln, Missoula, Sanders, Powell, Granite, Ravalli, Deer Lodge, Silver Bow, Jefferson, Broadwater, Gallatin, Madison, Lake, and Beaverhead Counties plus parts of Meagher, Musselshell, and Toole Counties in Montana
Ecclesiastical province Province of Portland
Area 51,922 sq mi (134,480 km2)
- Total
- Catholics
(as of 2013)
55,800[1] (9.9%)
Denomination Roman Catholic
Rite Roman Rite
Established March 7, 1884
Cathedral Cathedral of Saint Helena
Patron saint St. Helena
Current leadership
Pope Francis
Bishop George Leo Thomas
Bishop of Helena
Metropolitan Archbishop Alexander King Sample
Diocese of Helena.PNG

The Diocese of Helena (Latin: Dioecesis Helenensis) is the Catholic diocese for western Montana with its cathedral located in Helena, the state capital. The diocese was erected from the year-old Vicarate of Montana on March 7, 1884, while Montana was still a territory. The diocese is a suffragan of the Archdiocese of Portland, which encompasses Oregon, Idaho, and Montana.


Before becoming a diocese, this was the Vicariate of Montana (covering the whole territory and then state of Montana).[2] For its first twenty years, the diocese served all of Montana. In 1904 the new Diocese of Great Falls was formed to serve eastern Montana.[3]

The seat of the diocese is in the Cathedral of St. Helena in the state capital of Helena. It was completed in 1914.


The bishops of the Diocese of Helena and their years of service:

  1. Jean-Baptiste Brondel - (1884–1903; Vicar Apostolic, 1883-84)
  2. John Patrick Carroll - (1904–25)
  3. George Joseph Finnigan - (1927–32)
  4. Ralph Leo Hayes - (1933–35)
  5. Joseph Michael Gilmore - (1935–62)
  6. Raymond Gerhardt Hunthausen - (1962–75)
  7. Elden Francis Curtiss - (1976–93)
  8. Alexander Joseph Brunett - (1994–97)
  9. Robert C. Morlino - (1999–2003)
  10. George Leo Thomas - (2004–present)

High schools[edit]

See also[edit]


  1. ^ Catholic Hierarchy
  2. ^ Wikisource-logo.svg Herbermann, Charles, ed. (1913). "Helena". Catholic Encyclopedia. New York: Robert Appleton Company. 
  3. ^ [1]

External links[edit]

Coordinates: 46°35′45″N 112°01′37.3″W / 46.59583°N 112.027028°W / 46.59583; -112.027028