As of 2026-10-12, Apostolic Vicariate of Iquitos tops the list with 993,842 members.
- #1 Apostolic Vicariate of Iquitos — 993,842 members
Catholic apostolic vicariate in Peru
The Apostolic Vicariate of Iquitos, originally Apostolic Prefecture of San León del Amazonas, is a Latin Church pre-diocesan missionary jurisdiction apostolic vicariate of the Catholic Church in Amazonian northern Peru. Read more on Wikipedia.
Wikidata - #2 Apostolic Vicariate of El Petén — 874,840 members
apostolic vicariate
The Vicariate Apostolic of El Petén is a Latin Church ecclesiastical jurisdiction or apostolic vicariate of the Catholic Church in Petén Department, Guatemala. Read more on Wikipedia.
Wikidata - #3 Roman Catholic Diocese of La Paz en la Baja California Sur — 556,120 members
diocese of the Catholic Church in Mexico
The Roman Catholic Diocese of La Paz en la Baja California Sur is a suffragan diocese of the Archdiocese of Tijuana. It was a suffragan of the Archdiocese of Hermosillo until 25 November 2006. Read more on Wikipedia.
Wikidata - #4 Apostolic Vicariate of Puerto Princesa — 486,592 members
apostolic vicariate of the Catholic Church in the Philippines
The Apostolic Vicariate of Puerto Princesa is a Latin Catholic missionary jurisdiction or apostolic vicariate of the Catholic Church located in the Province of Palawan, Philippines. Its cathedra is within Immaculate Conception Cathedral in the episcopal see of Puerto Princesa City, Palawan, Philippines. It is not a part of an ecclesiastical province as it is directly exempt to the Holy See, specifically the Congregation for the Evangelization of Peoples, yet for the purpose of apostolic... Read more on Wikipedia.
Wikidata - #5 Apostolic Vicariate of Jaén en Peru — 469,980 members
Catholic apostolic vicariate in Peru
The Apostolic Vicariate of Jaén en Peru or Vicariate Apostolic of San Francisco Javier is a Latin Church apostolic vicariate of the Catholic Church in Peru. Its cathedral is located in the episcopal see of Jaén, in Peru's Cajamarca province. It remains immediately exempt subject to the Holy See and not part of an ecclesiastical province. Read more on Wikipedia.
Wikidata - #6 Apostolic Vicariate of Esmeraldas — 459,934 members
Catholic apostolic vicariate in Ecuador
The Apostolic Vicariate of Esmeraldas is a missionary pre-diocesan circonscription of the Roman Catholic Church. Its cathedral see Catedral Cristo Rey is located in the town of Esmeraldas in Ecuador's homonymous Pacific coastal province. It is exempt, i.e. directly subject to the Holy See, not part of any ecclesiastical province. Read more on Wikipedia.
Wikidata - #7 Apostolic Vicariate of San Jose in Mindoro — 455,280 members
apostolic vicariate of the Catholic Church in the Philippines
The Apostolic Vicariate of San Jose in Mindoro is a Latin Catholic missionary jurisdiction or apostolic vicariate of the Catholic Church in the western part of Mindoro island in the Philippines. Its cathedra is within the Cathedral-Parish of St. Joseph the Worker, in the episcopal see of San Jose. Read more on Wikipedia.
Wikidata - #8 Apostolic Vicariate of Pucallpa — 434,600 members
Catholic apostolic vicariate in Peru
The Apostolic Vicariate of Pucallpa is a Latin Church Apostolic vicariate of the Catholic Church in Peru. It is immediately exempt to the Holy See and not part of any ecclesiastical province. Read more on Wikipedia.
Wikidata - #9 Apostolic Vicariate of Taytay — 384,140 members
apostolic vicariate of the Catholic Church in the Philippines
The Apostolic Vicariate of Taytay is a Latin Catholic pre-diocesan missionary jurisdiction in the island of Palawan in the Philippines. Read more on Wikipedia.
Wikidata - #10 Apostolic Vicariate of San Ramón — 370,900 members
Catholic apostolic vicariate in Peru
The Apostolic Vicariate of San Ramón is a Latin Church apostolic vicariate of the Catholic Church located in the episcopal see of San Ramón in Peru. Read more on Wikipedia.
Wikidata