Be aware that we have listed only a single complete postal code for
London, Ontario (ON)
due to the request from Canada Post. You may search for full list of postal codes for
at Canada Post
Click on a province or territory to see Canadian post codes (zip codes in U.S. terminology) for available cities, towns, and villages.
Why is zip code data on an environmental science site?
In 2002 I was working on a project that correlated pollution and income for postal codes across the United States and Canada. While the Canadian effort did not work out so well, visitors told me the data files were very useful so I left them on the site and now update the postal information on a periodic basis even though the focus of the site is conservation.