Ontario is a central-eastern province of Canada located in North America. Known for its large population, economic hubs, and major cities like Toronto and Ottawa, Ontario has postal codes ranging from K0A to R5J. These postal codes, managed by Canada Post, ensure efficient mail and parcel delivery across the province.
Key Information About Ontario Postal Code
| Item | Details |
|---|---|
| Province | Ontario (ON) |
| Postal Code Range | K0A – R5J |
| Area Codes | 226, 249, 289, 343, 365, 416, 437, 519, 548, 613, 647, 705, 807, 905 |
| ISO Code | CA-ON |
| Capital / Seat | Toronto |
| Country | Canada |
| Continent | North America |
For more details on the list of postal codes or ZIP codes in Ontario, find the code along with the region below.
Postal Codes of Ontario by Region
| Region | Postal Code Range | Province |
|---|---|---|
| Algoma | P0M – P6C | Ontario |
| Brant | N0A – N3V | Ontario |
| Bruce | N0G – N2Z | Ontario |
| Chatham-Kent | L0R – N8A | Ontario |
| Cochrane | P0K – P5N | Ontario |
| Dufferin | L0N – L9W | Ontario |
| Durham | K0M – L9P | Ontario |
| Elgin | K0A – N5R | Ontario |
| Essex | N0P – N9Y | Ontario |
| Frontenac | K0H – K7P | Ontario |
| Greater Sudbury | P0M – P3Y | Ontario |
| Grey | L9Y – N4N | Ontario |
| Haldimand-Norfolk | M5P – N4B | Ontario |
| Haliburton | K0L, K0M | Ontario |
| Halton | L0P – L9T | Ontario |
| Hamilton | L0R – L9K | Ontario |
| Hastings | K0K – K8V | Ontario |
| Huron | N0G – N7A | Ontario |
| Kawartha Lakes | K0L – L0B | Ontario |
| Kenora | P0L – R5J | Ontario |
| Lambton | N0M – N7X | Ontario |
| Lanark | K0A – K7H | Ontario |
| Leeds and Grenville | K0E – K7G | Ontario |
| Lennox and Addington | K0H – K7R | Ontario |
| Manitoulin | P0P | Ontario |
| Middlesex | L0G – P0M | Ontario |
| Muskoka | L0E – P1P | Ontario |
| Niagara | L0R – L3M | Ontario |
| Nipissing | K0J – P2B | Ontario |
| Northumberland | K0K – L1A | Ontario |
| Ottawa | K0A – K4P | Ontario |
| Oxford | N0B – N5C | Ontario |
| Parry Sound | P0A – P2B | Ontario |
| Peel | K0K – M7R | Ontario |
| Perth | N0B – N5A | Ontario |
| Peterborough | K0L – L0A | Ontario |
| Prescott and Russell | K0A – K6A | Ontario |
| Prince Edward | K0K, K0M | Ontario |
| Rainy River | L0R – P9A | Ontario |
| Renfrew | K0A – K8H | Ontario |
| Simcoe | L0G – P0E | Ontario |
| Stormont, Dundas and Glengarry | K0A – K6K | Ontario |
| Sudbury | P0H – P5E | Ontario |
| Thunder Bay | P0M – P7L | Ontario |
| Timiskaming | P0J – P2N | Ontario |
| Toronto | L4K – M9W | Ontario |
| Waterloo | N0B – N3B | Ontario |
| Wellington | L0L – N1M | Ontario |
| York | L0C – L9N | Ontario |
About Ontario Postal Codes
Each region in Ontario has a specific postal code range that ensures precise mail and parcel delivery. Using the correct postal code helps Canada Post route correspondence efficiently, whether it’s sent to Toronto, Ottawa, or smaller towns like Manitoulin and Kenora. Accurate postal codes are essential for administrative purposes, commercial shipping, and everyday communications.