Not all countries use a ZIP or postal code system.
For those that do the codes refer to areas within a country, not to the country itself. There are probably many hundreds of thousands of them world wide.
Only the United States and the Philippines have ZIP Codes®. Other countries have various systems of postal codes, but the name "ZIP Code" applies only to the postal codes used by the United States and the Philippines.
Note that the Philippines Zip Code system is completely separate from the US Zip Code system. In particular, US Zip Codes are 5 digits, with an optional 4-digit extension (e.g., 12345-1234), while Philippines Zip Codes are 4 digits (e.g., 1234).
Only the United States and the Philippines have ZIP Codes. Other countries may have postal codes that use other names (postcode, PIN Code, etc.), or may not have postal codes at all.
If you are asking about telephone numbers, the correct term is "telephone country code," not zip code.
Only the United States has ZIP Codes®. Other countries have various systems of postal codes, but the name "ZIP Code" applies only to the United States.
There are many different zip codes in the United States. One of the zip codes in Cincinnati is 45202. The zip code for Independence, KY is 41051.
There is no such thing as a "country zip code." A Zip Code is a postal code used in either the United States or the Philippines, corresponding to a town or a part of a city.
In general, countries do not have postal codes. A postal code typically identifies a town or a part of a city, not an entire country.
United stage
Only two countries use ZIP Codes: the United States and the Philippines. Many other countries have postal codes that use other names (postcodes, PIN Codes, etc.). Some countries do not use postal codes at all.
Different cities have different codes and countries don't have zip codes. Detailed list of Zip Codes of all cities of Pakistan can be found on Wikipedia.
West Africa does not have ZIP Codes. Only the USA and the Philippines have ZIP Codes. Many other countries have other systems of postal codes, postcodes, PIN Codes, etc.
Countries do not have ZIP codes.
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Iran and other countries do not have a zip code. Other countries may have postal codes that are used, but zip codes are for the US only.
african countries do not have zip codes
Antigua and Barbuda does not have a zip code, nor does it have postal codes. ZIP Codes are only for the United States. Some other countries have postal codes, but it is incorrect to call them ZIP Codes.
Allston, Massachusetts, so that would be U.S.A.Also, all ZIP Codes are in the United States or the Philippines. Other countries have postal codes, but ZIP Code® is a specific term for the postal code systems in the USA and the Philippines only. US ZIP Codes are 5 digits; Philippine ZIP Codes are 4 digits.
City Data and Dreamtown both have a map of Chicago with zip codes. Zip Codes itself also has a website that shows all the zip codes on a map of Chicago.
00233
78486 is not a valid ZIP Code in either the United States or the Philippines, which are the only two countries that call their postal codes "ZIP Codes."