- Aachen, Germany
- Aberdeen, United Kingdom
- Achonry
- Acre
- Adilabad
- Agde
- Agen, France
- Agra, India
- Aire sur Adour, France
- Aix-en-Provence-Arles-Embrun, France
- Ajaccio, France
- Alba-Iulia, Romania
- Albany, United States
- Albi
- Alexandria-Cornwall
- Alexandria in Louisiana, United States
- Allentown, United States
- Alto Valle del Río Negro
- Altoona-Johnstown, United States
- Amarillo, United States
- Ambositra, Madagascar
- Amiens, France
- Amos
- Añatuya
- Andong, South Korea
- Angers, France
- Angoulême, France
- Annecy, France
- Antigonish, Canada
- Ardagh, Ireland
- Arecibo, Puerto Rico
- Arlington, United States
- Arras, Ireland
- Arundel and Brighton, United Kingdom
- Auch
- Augsburg, Germany
- Austin, United States
- Autun, France
- Avellaneda-Lanús
- Avignon, France
- Azul
- Baie-Comeau
- Baker, United States
- Baltimore, United States
- Basel (ca. 346 - present)
- Baton Rouge, United States
- Bayeux-Lisieux, France
- Bayonne, France
- Beaumont, United States
- Beauvais-Noyons-Senlis
- Belize City-Belmopan, Belize
- Belfort-Montbéliard
- Belleville
- Belley-Ars
- Belthangady
- Béziers, France
- Bielsko-Biała-Żywiec
- Biloxi, United States
- Birmingham, United States
- Bismarck, United States
- Blois, France
- Boise, United States
- Bourges, France
- Brandenburg, Germany
- Brentwood, United Kingdom
- Bridgeport, United States
- Brooklyn, United States
- Brownsville, United States
- Bucarest, Romania
- Burlington, United States
- Buffalo, United States
- Busan
- Bydgoszcz, Poland
- Caguas, Puerto Rico
- Cahors, France
- Calgary, Canada
- Carcassonne
- Carpentras
- Camden, United States
- Caroline Islands
- Chalan Kanoa, Northern Mariana Islands
- Châlons, France
- Chamberry
- Chanda
- Chanthaburi, Thailand
- Charleston, United States
- Charlotte, United States
- Charlottetown, Canada
- Chartres, France
- Chascomús
- Cheyenne, United States
- Chiang Mai, Thailand
- Chicago, United States
- Chicoutimi
- Chunchun, South Korea
- Chungju, South Korea
- Chur (ca. 451-present), Switzerland and Lichtenstein
- Churchill-Hudson Bay, Canada
- Cleveland, United States
- Clifton, United Kingdom
- Clogher, Ireland
- Clonfert, Ireland
- Cloyne, Ireland
- Cluj-Gherla
- Colorado Springs, United States
- Columbus, United States
- Comodoro Rivadavia, Argentina
- Concepción
- Concordia
- Copenhagen, Denmark and Greenland
- Cork and Ross, Ireland
- Corpus Christi, United States
- Coutances and Avranches, France
- Covington, United States
- Cracow, Poland
- Créteil
- Crookston, Minnesota
- Cruz del Eje
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- Dallas, United States
- Darjeeling, India
- Davenport, United States
- Derry, Northern Ireland
- Des Moines, United States
- Digne, France
- Djibouti, Djibouti
- Dodge City, United States
- Down and Connor, Northern Ireland
- Dresden-Meissen, Germany
- Drohiczyn, Poland
- Dromore
- Dublin, Ireland
- Dubrovnik, Croatia
- Dundee, South Africa
- Dunkeld, Ireland
- Durban, South Africa
- Duluth, United States
- East Anglia, United Kingdom
- Edmonton, Canada
- Edmunston, Canada
- Eichstätt, Germany
- El Paso, United States
- Elbląg, Poland
- Ełk, Poland
- Elphin, Ireland
- Erfurt, Germany
- Erie, United States
- Essen, Germany
- Evansville, United States
- Evreux, France
- Évry-Corbeil-Essonnes, France
- Fairbanks, United States
- Fall River, Massachusetts, United States
- Farafangana, Madagascar
- Fargo, United States
- Ferns, Ireland
- Formosa, Argentina
- Formosa, Brazil
- Fort Wayne-South Bend, United States
- Fort Worth, United States
- Fréjus et Toulon, France
- Fresno, United States
- Galloway, United Kingdom
- Gallup, United States
- Galway and Kilmacduagh, Ireland
- Gap, France
- Gary, United States
- Gaspé, Canada
- Gaylord, United States
- Ghent, Belgium
- Gliwice, Poland
- Goya, Argentina
- Grand Falls, Canada
- Grand Island, United States
- Grand Rapids, United States
- Gravelbourg, Canada (titular)
- Graz - Seckau, Austria
- Great Falls-Billings
- Green Bay, United States
- Greensburg, United States
- Gregorio de Laferrere, Argentina
- Grenoble, France
- Gualeguaychú, Argentina
- Haarlem, Netherlands
- Hallam, United Kingdom
- Hamheung, South Korea
- Hamilton, Canada
- Harrisburg, United States
- Hearst, Canada
- Helena, United States
- Helsinki, Finland
- Hexham and Newcastle
- Hong Kong
- Honolulu, United States
- Houma-Thibodaux, United States
- Ihosy, Madagascar
- Incheon, South Korea
- Jackson, United States
- Jefferson City, United States
- Jeonju, South Korea
- Joliet, United States
- Joliette, Canada
- Juneau, United States
- Kalamazoo, United States
- Kalisz, Polamd
- Kamloops, Canada
- Kansas City-Saint Joseph, United States
- Kaohsiung, Republic of China
- Kerry, Ireland
- Kielce, Poland
- Kildare and Leighlin
- Killala, Ireland
- Killaloe, Ireland
- Kilmore, Ireland
- Knoxville, United States
- Koszalin-Kołobrzeg, Poland
- Kraków, Poland
- La Crosse, United States
- Labrador City-Schefferville, Canada
- Lafayette in Indiana, United States
- Lafayette in Louisiana, United States
- Lake Charles, United States
- Lancaster, United States
- Lansing, United States
- Langres, France
- Laredo, United States
- La Rioja, Argentina
- La Rochelle, France
- Las Cruces, United States
- Las Vegas, United States
- Lausanne, France
- Laval, Canada
- Leeds, United Kingdom
- Le Havre, France
- Le Mans, France
- Le Puy-en-Velay
- Legnica, Poland
- Lexington, United States
- Liège, Belgium
- Lille, France
- Limerick, Ireland
- Limoges, France
- Linares, Chile
- Lincoln, United States
- Lindisfarne, Ireland
- Little Rock, United States
- Lomas de Zamora, Argentina
- Łomża, Poland
- London, Ontario, Canada
- Łowicz, Poland
- Lubbock, United States
- Luçon, France
- Lugoj, Romania
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- Mackenzie-Fort Smith, Canada
- Madison, United States
- Mainz, Germany
- Mananjary
- Manchester
- Mar del Plata
- Maramureş
- Marquette
- Masan
- Mayagüez
- Meath, Ireland
- Meaux
- Memphis, United States
- Mende
- Menevia
- Merlo-Moreno
- Metuchen
- Middlesbrough
- Mont-Laurier, Canada
- Montauban
- Monterey
- Moosonee
- Moramanga
- Morón, Colombia
- Motherwell
- Moulins
- Muenster
- Nakhon Ratchasima
- Nakhon Sawan
- Nancy, France
- Nanterre, France
- Nantes, France
- Nashville, United States
- Nelson, Canada
- Neuquén
- Nevers
- New Ulm, United States
- Nice
- Nicolet
- Nimes
- Nitra
- Northampton, United Kingdom
- Norwich, United Kingdom
- Nottingham, United Kingdom
- Nueve de Julio
- Oakland, United States
- Ogdensburg
- Opole
- Oradea
- Orán
- Orange, United States
- Orlando, United States
- Orléans, France
- Ösel-Wiek
- Oslo
- Ossory
- Owensboro
- Paisley
- Palm Beach, United States
- Pamiers
- Passau
- Paterson, United States
- Pelplin
- Pembroke
- Pensacola-Tallahassee, United States
- Peoria, United States
- Périgueux, France
- Perpignan-Elne, France
- Peterborough
- Phoenix, United States
- Pittsburgh, United States
- Płock, Poland
- Plymouth, United States
- Ponce
- Pontoise
- Port-Louis
- Portland, United States
- Portsmouth, United Kingdom
- Posadas, Misiones
- Prince Albert
- Prince George, Canada
- Providence, United States
- Pueblo
- Puerto Iguazú
- Pyungyang, North Korea
- Quebec, Canada
- Quilmes
- Quimper
- Radom
- Rafaela
- Raleigh, North Carolina, United States
- Raphoe
- Rapid City, United States
- Ratchaburi
- Reconquista
- Reno, Nevada, United States
- Reyjkavik
- Richmond, United States
- Río Gallegos
- Rochester, United States
- Rockford
- Rockville Centre
- Rodez
- Rouyn-Noranda
- Rzeszów, Poland
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- Sacramento, United States
- Saginaw, United States
- Saint-Anne-de-la-Pocatière, Canada
- Saint Augustine, United States
- Saint-Brieuc, Canada
- Saint-Claude, Canada
- Saint Cloud
- Saint-Denis, Canada
- Saint-Dié, Canada
- Saint-Etienne, Canada
- Saint-Flour, Canada
- Saint-Hyacinthe, Canada
- Saint-Jean-Longueuil, Canada
- Saint-Jérôme, Canada
- Saint John
- Saint-Paul
- St. Petersburg, United States
- Saint Thomas
- Salford
- Salina, United States
- Salt Lake City, United States
- Samoa-Pago Pago
- San Angelo
- San Bernardino, United States
- San Carlos de Bariloche
- San Diego, United States
- San Fernando del Valle de Catamarca
- San Francisco, Argentina
- San Isidro
- San Jose, California, United States
- San Justo
- San Luis
- San Martín
- San Miguel
- San Nicolás de los Arroyos
- San Rafael
- San Roque
- San Salvador, El Salvador
- San Salvador de Jujuy
- Sandomierz
- Santa Rosa, Argentina
- Santa Rosa, California, United States
- Santiago del Estero
- Santo Tomé
- Saskatoon, Canada
- Sault Ste. Marie, Canada
- Savannah, United States
- Scranton, United States
- Sées
- Sens-Auxerre
- Shreveport, United States
- Shrewsbury, United Kingdom
- Siedlce
- Sion
- Sioux City, United States
- Sioux Falls, United States
- Soissons-Laon-Saint-Quentin
- Sosnowiec
- Speyer
- Spokane, United States
- Springfield in Illinois, United States
- Springfield in Massachusetts, United States
- Springfield Cape-Girardeau, United States
- St. Catharines
- St. Gallen (1847-present)
- St. George's
- St. John's-Bassetere, Canada
- Steubenville
- Stockholm, Sweden
- Stockton, United States
- Superior, United States
- Suwon
- Surat Thani
- Świdnica
- Roman Catholic Archdiocese of Sydney, New South Wales, Australia
- Syracuse, United States
- Taejon
- Tarbes et Lourdes
- Tarnów
- Thunder Bay, Canada
- Timmins
- Toledo, United States
- Tortosa
- Toruń
- Tours
- Trois-Rivières, Canada
- Troyes
- Trenton, United States
- Tucson, United States
- Tulle
- Tulsa, United States
- Tunis
- Tyler, United States
- Ubon Ratchathani
- Udon Thani
- Uijungbu
- Urgell
- Valence
- Valleyfield
- Vannes
- Venado Tuerto
- Venice in Florida
- Verdun, France
- Versailles, France
- Victoria, British Columbia, Canada
- Victoria in Texas, United States
- Viedma
- Villa de la Concepción del Río Cuarto
- Villa María
- Viviers
- Warsaw-Praga
- Waterford and Lismore
- Wheeling-Charleston, United States
- Whitehorse, Canada
- Wichita, United States
- Wilmington, United States
- Winona, United States
- Włocławek, Poland
- Roman Catholic Diocese of Wollongong, New South Wales, Australia
- Wonju
- Worcester
- Worms, Germany
- Wrexham, United Kingdom
- Würzburg, Germany
- Yakima, United States
- Yarmouth, United Kingdom
- Youngstown, United States
- Zamość-Lubaczów
- Zárate-Campana
- Zielona Góra-Gorzów Wielkopolski, Poland
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