The Diocese of Shreveport covers an area of 28,825 square kilometres (11,129 sq mi). Its mother church is the Cathedral of Saint John Berchmans, in Shreveport. The Diocese of Shreveport is a suffragan diocese of the metropolitan Archdiocese of New Orleans. The Diocese of Shreveport ( Latin: Dioecesis Sreveportuensis in Louisiana) is a Latin Church ecclesiastical territory, or diocese, of the Catholic Church covering the parishes of northern Louisiana in the United States.