K7L 5M3 is Canadian Postal Code located in Calvin Park Ontario.
| Postal Code | K7L 5M3 |
| Forward Sortation Area | K7L |
| Name | Calvin Park |
| Province | Ontario |
| Administrative Division | Frontenac County |
| City | Kingston |
| Timezone | Eastern Daylight Time (EDT) |
| Area Code(s) | 343 / 613 |