Tags: Clerical Administrative Region, Diocese.
The Roman Catholic Diocese of Joliet in Illinois (Latin: Dioecesis Joliettensis in Illinois) is an ecclesiastical territory or diocese of the Roman Catholic Church in the United States. It comprises the City of Joliet in Illinois and its surrounding counties: DuPage Ford Grundy Iroquois Kankakee Kendall and Will. It is governed by a bishop who is a suffragan of the Archbishop of Chicago. The mother church is the Cathedral of St.
