The Diocese of Thunder Bay is divided up into 3 distinct areas which are the Western Region, Central Region, and Eastern Region. This covers a vast distance between the Manitoba border, all the way to Manitouwadge.
The Western Region includes the following places:
- Ear Falls
- Fort Frances
- Red Lake
- Rainy River
- Sioux Lookout
- Sioux Narrows & Lake of the Woods
- Sandy Lake
- Vermilion Bay
Detailed Information about the Western Region Parishes is on a separate page.
The Central Region includes the following places:
- Thunder Bay
- Kakabeka Falls
- Fort William First Nations
Detailed Information about the Central Region Parishes is on a separate page. The Cathedral is located in Thunder Bay.
The Eastern Region includes the following places:
- Beardmore & Missions
- Marathon and Heron Bay
- Red Rock
- Terrace Bay
Detailed Information about the Eastern Region Parishes is on a separate page.