Keuskupan Great Falls–Billings
Pranala luar

Roman Catholic Diocese of Great Falls–Billings Official Site
St. Ann's Cathedral - Great Falls - website
St. Patrick's Cathedral - Billings - website
Billings Catholic Schools - website
Great Falls Central High School - official site
| l b Keuskupan Gereja Katolik di Amerika Serikat |
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Pembagian region menurut Konferensi Waligereja Amerika Serikat (USCCB)
| Region I |  A. Boston Burlington  Fall River  Manchester  Portland  Springfield di Massachusetts  Worcester  A. Hartford Bridgeport  Norwich  Providence  |  |
| Region II |  A. New York Albany  Brooklyn  Buffalo  Ogdensburg  Rochester  Rockville Centre  Syracuse  |  |
| Region III |  A. Newark Camden  Metuchen  Paterson  Trenton  A. Philadelphia Allentown  Altoona-Johnstown  Erie  Greensburg  Harrisburg  Pittsburgh  Scranton  |  |
| Region IV |  A. Washington Saint Thomas  A. Baltimore Arlington  Richmond  Wheeling-Charleston  Wilmington  A. Kedinasan Militer Amerika Serikat  |  |
| Region V |  A. Louisville Covington  Knoxville  Lexington  Memphis  Nashville  Owensboro  A. Mobile Biloxi  Birmingham  Jackson  A. New Orleans Alexandria  Baton Rouge  Houma-Thibodaux  Lafayette  Lake Charles  Shreveport  |  |
| Region VI |  A. Cincinnati Cleveland  Columbus  Steubenville  Toledo  Youngstown  A. Detroit Gaylord  Grand Rapids  Kalamazoo  Lansing  Marquette  Saginaw  |  |
| Region VII |  A. Chicago Belleville  Joliet di Illinois  Peoria  Rockford  Springfield di Illinois  A. Indianapolis Evansville  Fort Wayne-South Bend  Gary  Lafayette di Indiana  A. Milwaukee Green Bay  La Crosse  Madison  Superior  |  |
| Region VIII |  A. Saint Paul dan Minneapolis Bismarck  Crookston  Duluth  Fargo  New Ulm  Rapid City  Saint Cloud  Sioux Falls  Winona  |  |
| Region IX |  A. Dubuque Davenport  Des Moines  Sioux City  A. Kota Kansas Dodge City  Salina  Wichita  A. Omaha Grand Island  Lincoln  A. Saint Louis Kota Jefferson  Kota Kansas-Saint Joseph  Springfield-Cape Girardeau  |  |
| Region X |  A. Galveston-Houston Austin  Beaumont  Brownsville  Corpus Christi  Tyler  Victoria di Texas  A. Kota Oklahoma Little Rock  Tulsa  A. San Antonio Amarillo  Dallas  El Paso  Fort Worth  Laredo  Lubbock  San Angelo  Ordinariat Personal Tahta Santo Petrus  |  |
| Region XI |  A. Las Vegas Reno  Salt Lake City  A. Los Angeles Fresno  Monterey di California  Orange di California  San Bernardino  San Diego  A. San Francisco Honolulu  Oakland  Sacramento  San Jose di California  Santa Rosa  Stockton  |  |
| Region XII |  A. Anchorage–Juneau Fairbanks  A. Portland di Oregon Baker  Boise City  Great Falls-Billings  Helena  A. Seattle Spokane  Yakima  |  |
| Region XIII |  A. Denver Cheyenne  Colorado Springs  Pueblo  A. Santa Fe Gallup  Las Cruces  Phoenix  Tucson  |  |
| Region XIV |  A. Atlanta Charleston  Charlotte  Raleigh  Savannah  A. Miami Orlando  Palm Beach  Pensacola-Tallahassee  Saint Augustine  Saint Petersburg  Venice  |  |
| Region XV |  Philadelphia Parma  Chicago  Stamford  Pittsburgh Phoenix  Parma  Passaic Gereja Katolik Timur Eparki AS dan Kanada (Armenia) Eparki AS dan Kanada (Siro-Malankara) Eparki Brooklyn (Maronit) Eparki Canton (Rumania) Eparki Chicago (Siro-Malabar) Eparki Detroit (Kaldea) Eparki Los Angeles (Maronit) Eparki Newark (Siria) Eparki Newton (Yunani Melkit) Eparki San Diego (Kaldea)  |  |
Keuskupan Salt Lake City berada di bawah Keuskupan Agung Las Vegas, namun masuk dalam Region XIII   Keuskupan Honolulu yang berada di kawasan Polinesia juga masuk dalam Region XI
47°30′13″N 111°17′10.67″W﻿ / ﻿47.50361°N 111.2862972°W﻿ / 47.50361; -111.2862972