- Archdiocese of Chicago@
- Archdiocese of Boston
 - Includes press releases and statements, information on parish reconfiguration, and The Pilot newspaper. - Archdiocese of New York@
- Archdiocese of Philadelphia
- Serving the faithful of the Roman Catholic Church in Philadelphia .
- Archdiocese of Atlanta
- Archdiocese of Baltimore@
- Archdiocese of Milwaukee
- Archdiocese of Los Angeles@
- Archdiocese of Indianapolis
- Archdiocese of Newark
- Archdiocese of Saint Paul and Minneapolis
- Diocese of Cleveland@
- Archdiocese of Seattle
- Offers ministry programmes, parish schools, and community services.
 Archdiocese of Dublin
- Unofficial web site.- Archdiocese of Washington
- Serving the District of Columbia and adjacent Maryland counties.
- Dublin, Ireland
- Unofficial web site.
- Archdiocese of Cincinnati
- Roman Catholic Diocese of Dallas
- Listing the parishes, schools, agencies, and departments of the diocese including addresses, phone numbers, and pertinent information
- Archdiocese of Portland, OR@
- Diocese of Buffalo
- Diocese of Sacramento
- Encompassing 20 counties in Northern California. Site includes parish directory, calendar of events, history of the diocese, and selected articles from the Catholic Herald newspaper.
- Archdiocese of San Francisco@
- Diocese of Charleston
- Comprises the entire state of South Carolina.
- Diocese of Wheeling-Charleston
- Listings of clergy, parishes, offices along with phone numbers and e-mail addresses.
- Green Bay, WI
- Roman Catholic Diocese of Rochester
- Includes information on history, pastoral centre, schools, and charities.
- Archdiocese of Singapore
- Veritas!
 Diocese of Arundel and Brighton@
- Archdiocese of Malta
- Information service provided by the PR Office of the Archbishop's Curia.
- Diocese of Kansas City - St. Joseph
- Contains the listings of all parish and school phone numbers. The Catholic Chancery service area and departments are also listed.
- Toledo, OH
- Diocese of Oakland, CA
- Provides parishes, departments, events, links, stewardship, and schools.
- Bistum Limburg
- Diocese of Limburg, Germany.
- Archdiocese of Sydney
- Includes information about parishes, mass times, vocations, hospitals, schools, and more.
- Archdiocese of Kansas City, KS
- Catholic Diocese of Richmond
- Portal to all the functions of the Diocese.
- Diocese of Albany
- Diocese of Belleville, IL
- Diocese of La Crosse, Wisconsin
- Diocese of Phoenix
- Includes parish and school links, as well as the diocesan newspaper, the Catholic Sun.
- Roman Catholic Diocese of Harrisburg
- Diocese of Jackson
- Diocese of Trenton
- Serves the counties of Burlington, Mercer, Monmouth, and Ocean.
- Diocese of Winona, MN
- Roman Catholic Diocese of Burlington, VT
- News, mass schedule and more.
- Diocese of Fargo
- Diocese of Spokane, WA
- Archdiocese of Melbourne@
- Diocese of San Bernardino
- Catholic Diocese of San Angelo, TX
- Diocese of Monterey, CA
- Serving seven missions in the surrounding area. Helping to educate, inspire, and evangelize local communities.
- Diocese Of Waterford And Lismore
- Diocese of Owensboro
- Includes all parish and school links, as well as the diocesan newspaper, the Western Kentucky Catholic.
- Diocese of Shreveport
- Diocese of Saint Cloud
- Diocese of London, Ontario
- Diocese of Alexandria
- Archdiocese of Halifax, Nova Scotia
- Diocese of Beaumont
- Diocese of Norwich
- Roman Catholic Diocese of Portland, ME
- Provides church news, parish locations, and community resources.
- Diocese of Duluth
- Includes information on parishes and communities.
- Catholic Diocese of Ballarat
- Information on parishes of the diocese, as well as services and agencies.
- Diocese of Cheyenne
- Diocese of Raleigh
- Covers 54 counties in eastern North Carolina from Allamance county east to the coast and from VA to SC borders.
- Diocese of Limerick
- Roman Catholic Archdiocese of Westminster
- Provides information about the diocese, including schools and links to each of the Pastoral Areas.
- Diocese of Grand Island
- Includes information about the diocese and chancery, youth ministry, parishes, and schools.
- Society of St. Sulpice
- Assists in preparing candidates for priesthood, as well as furthering development of active priests and clergy.
- Diocese of Palm Beach
- Diocese of Marbel
- Ecclesiastical seat of the local church in the provinces of South Cotabato, Sarangani, and cities of Koronadal and General Santos.
- Archdiocese of Cape Town
- Arquidiócesis de Caracas, Venezuela
- Savannah Catholic Diocese Vocation Office
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