This is a list of postal codes in Canada where the first letter is S. Postal codes beginning with S are located within the Canadian province of Saskatchewan. Only the first three characters are listed, corresponding to the Forward Sortation Area. Canada Post provides a free postal code look-up tool on its website, via its mobile apps for such smartphones as the iPhone and BlackBerry, and sells hard-copy directories and CD-ROMs. Many vendors also sell validation tools, which allow customers to properly match addresses and postal codes. Hard-copy directories can also be consulted in all post offices, and some libraries. Saskatchewan - 53 FSAs Currently there are no S1*, S5* or S8* codes. Urban Rural References Communications in Saskatchewan S Postal codes S