The Diocese of Mobile is a Roman Catholic diocese located in the state of Alabama, USA. Established in 1825, it serves a diverse population of Catholics in the region. The diocese is part of the larger ecclesiastical province of the Archdiocese of Mobile, which includes several other dioceses in the southeastern United States. The diocese encompasses a wide geographical area, including the city of Mobile and surrounding counties. It provides various services, including education, social services, and spiritual guidance, to its parishioners. The diocese is led by a bishop, who oversees the administration and pastoral care of the Catholic community within its boundaries.