L9R 0C3 is Canadian Postal Code located in Alliston Ontario.
| Postal Code | L9R 0C3 |
| Forward Sortation Area | L9R |
| Name | Alliston |
| Province | Ontario |
| Administrative Division | Simcoe County |
| City | New Tecumseth |
| Timezone | Eastern Daylight Time (EDT) |
| Area Code(s) | 249 / 705 |