It is immediately exempt to the Holy See and not part of any ecclesiastical province.

Its cathedral, Catedral de Santa Elena, is located in the episcopal see of Santa Elena de Uairén in Venezuela's landlocked Bolívar state.

On 4 March 1922 Pope Pius XI established the Apostolic Vicariate of Caroní.

It lost territory in 1954 when the Apostolic Vicariate of Tucupita was established.

This article on a Roman Catholic diocese in Venezuela is a stub.