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Markham Postcodes — Ontario (ON)
| Location | City/District | States or Territories | States or Territories Abbrieviation | Postcode |
|---|---|---|---|---|
| Markham Central | Markham | Ontario | ON | L3P |
| Markham Outer Southwest | Markham | Ontario | ON | L3R |
| Markham Southeast | Markham | Ontario | ON | L3S |
| Markham East | Markham | Ontario | ON | L6B |
| Markham Northwest | Markham | Ontario | ON | L6C |
| Markham Northeast | Markham | Ontario | ON | L6E |
| Markham Inner Southwest | Markham | Ontario | ON | L6G |
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