# Diocese ## Catechism of the Catholic Church A "particular church," a community of the faithful in communion of faith and sacraments whose bishop has been ordained in apostolic succession. A diocese is usually a determined geographic area; sometimes it may be constituted as a group of people of the same rite or language. In Eastern churches, an eparchy ([[1.2.3.9.p29#^ccc-833|833]]). ## Vatican II - diocese — "A diocese is a portion of the people of God which is entrusted to a bishop" — [[cd-02#^cd-11|CD ¶11]]