St. Mary Immaculate Conception Catholic Church is a Catholic church in Mount Vernon, Jefferson County, Illinois — listed by Overture Maps Places; last seen September 2026.
Who meets here
No organisation record is linked to this building yet — the building is known from the map sources below.
How we know
- Overture Maps Places · seen September 2026
One source lists this place; we have not yet seen it elsewhere. About our sources