Websites with ZIP codes or postal codes of countries outside of the United States include ZipCodeDownload.com and FreeSearching.com. These sites contain lookup tools or directories listing ZIP codes by metro area, city or town.
ZIP codes are a system of postal codes used by the United States and other countries to simplify the sorting and distribution of mail. Some countries and local communities do not use postal codes and most do not call them ZIP codes. International mail, however, requires a postal code field. For this reason, entering 00000 or N/A ensures the mail carrier does not mistake it for a location in the United States.