| 25 April 1969 | Erected | Archdiocese of Cartagena (Maganguè, Córdoba, Margarita, Mompós, Pinillos, San Fernando, and Zambrano)
Vicariate Apostolic of San Jorge (suppressed) (Achí, Barranco de Loba, Morales, San Martín de Loba, Simití, and San Pablo)
| Diocese of Magangué (erected)
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