Find a postal code for Ontario, Canada, by navigating to the Canada Post's official website, CanadaPost.ca, and clicking on the Find a Postal Code link from the menu on the right-hand side of the home page, according to Canada Post. Clicking the link brings up a search box to find a postal code based on an address, P.O. Box, civic number, general delivery or rural route.Continue Reading
To find a postal code in Ontario, follow these steps:
Visit the website at CanadaPost.ca, and click on the Find a Postal Code link.
To get the most accurate results, enter the entire address on just one line, notes Canada Post. Be sure to include an apartment or unit number if the address has one, and always start rural addresses with the proper prefix, such as RR, GD or P.O. Box.