Lista regionu
- N4X 0A2 - St. Marys, Perth, Ontario
- N4X 0A1 - St. Marys, Perth, Ontario
- N4X 0A3 - St. Marys, Perth, Ontario
- N4X 0A4 - St. Marys, Perth, Ontario
- N4X 0A5 - St. Marys, Perth, Ontario
- N4X 0A6 - St. Marys, Perth, Ontario
- N4X 1A1 - St. Marys, Perth, Ontario
- N4X 1A2 - St. Marys, Perth, Ontario
- N4X 1A3 - St. Marys, Perth, Ontario
- N4X 1A4 - St. Marys, Perth, Ontario
- N4X 1A5 - St. Marys, Perth, Ontario
- N4X 1A6 - St. Marys, Perth, Ontario
- N4X 1A7 - St. Marys, Perth, Ontario
- N4X 1A8 - St. Marys, Perth, Ontario
- N4X 1A9 - St. Marys, Perth, Ontario
- N4X 1B1 - St. Marys, Perth, Ontario
- N4X 1B2 - St. Marys, Perth, Ontario
- N4X 1B3 - St. Marys, Perth, Ontario
- N4X 1B4 - St. Marys, Perth, Ontario
- N4X 1B5 - St. Marys, Perth, Ontario