- Established July 28, 1837 as Diocese of Natchez. The name was changed to the Diocese of Natchez-Jackson on March 7, 1957. The Diocese of Natchez-Jackson was split into what is now known as the Diocese of Biloxi and the Diocese of Jackson on June 6, 1977. 237 East Amite Street P.O. Box 2248 Jackson, MS 39225-2248 (601) 969-1880 Diocesan Statements Diocesan Calendar Daily Readings WE MISS YOU!www.jacksondiocese.org