| Postal Code | K6J 3M4 |
| City | Cornwall |
| Province | Ontario (ON) |
| Coordinates | 45.0411000, -74.7499000 |
| Population | 20 |
| FSA (Forward Sortation Area) | K6J |
| LDU (Local Delivery Unit) | 3M4 |
| Country | Canada |
Located in Ontario, Canada is home to the sparsely populated community of Cornwall, served by postal code K6J 3M4.
Cornwall has a reported population of 20. It's a quieter, less populous area than the typical Ontario postal code (avg. ~47).
This postal code sits alongside neighboring areas like Kleinburg, Schomberg within Ontario.
The postal code for Cornwall, Ontario is K6J 3M4.
K6J 3M4 is located in Ontario, Canada.
The population of K6J 3M4 (Cornwall) is approximately 20 people.
K6J 3M4 is less populated than the typical Ontario postal code, which averages around 47 people.
Postal code codes near K6J 3M4 include L0J 0A1, L0J 1C0, L0G 0A1.