FedNor's designated service area (Northern Ontario) consists of the following Census Divisions:
- 3544 Muskoka District Municipality
- 3548 Nipissing District
- 3549 Parry Sound District
- 3551 Manitoulin District
- 3552 Sudbury District
- 3553 Greater Sudbury Census Division
- 3554 Timiskaming District
- 3556 Cochrane District
- 3557 Algoma District
- 3558 Thunder Bay District
- 3559 Rainy River District
- 3560 Kenora District
A list of the communities that form each census division is available on the Statistics Canada website.