The diocese dates back to the
Vicariate Apostolic of Owerri, which was created on February 12, 1948, when the Vicariate Apostolic of Onitsha-Owerri was split. On April 18, 1950, it was elevated to a diocese. On March 26, 1994, it became an archdiocese. On 27 December 2020, auxiliary bishop
Moses Chikwe and his driver were kidnapped by gunmen in Owerri. They were both released unharmed and without ransom, on 1 January 2021. ==Statistics==