It's just Catholic, not Roman Catholic. Roman is an epithet first commonly used in England after the protestant revolt to describe the Catholic Church. It is never used by the official Catholic Church.
Any city in the Philippines would be Catholic.
Thailand is a country in southeast Asia. It is not in a city.
Thailand.
TOKYO
singapore
Roman Catholic Archdiocese of Oklahoma City was created in 1905.
Thailand.
The Republic of Singapore.
cebu philippines
Vietnam
Roman Catholic Diocese of Dodge City was created on 1951-05-19.
Roman Catholic Diocese of Belize City-Belmopan's population is 287,730.
Roman Catholic Diocese of Sioux City was created on 1902-01-15.