The Archdiocese of St. Louis (Latin: Archidioecesis Sancti Ludovici) is the Roman Catholic archdiocese that covers the City of St. Louis and the Missouri counties of Franklin, Jefferson, Lincoln, Perry, Saint Charles, Saint Francois, Ste. Genevieve, St. Louis, Warren, and Washington. It is the metropolitan see to the suffragan sees of the Diocese of Springfield-Cape Girardeau, the Diocese of Jefferson City, and the Diocese of Kansas City-St.