Deanery - A regional subdivision of the Archdiocese. The Archdiocese of St. Louis comprises 10 deaneries: North City and South City (comprising the City of St. Louis); Northeast County, Northwest County, Southeast County, and Southwest County (comprising St. Louis County); Ste. Genevieve (comprising Ste. Genevieve, St. Francois, and Perry counties)... Found on http://archstl.org/becomingcatholic/page/catholic-glossary