The US itself does not have a zip code. All areas of the US do. They are 5 numbers and have an optional dash followed by 4 more numbers.
1234
66433 is not a valid US Zip code.
US ZIP code 77201 is for Houston, TX.
That is not a valid US zip code.
Zip code is the US term for Post Code
Zip code 50307 is listed to Des Moines, Iowa.
Every town has a different zip code.
00777 is the zip code for Juncos, Puerto Rico
US ZIP Code 93210 is Coalinga, California.
Zambia is not in the US so it doesn't have a zip code.
Cuernavaca does not have a zip code. Zip codes are used only in the US. "Zip" stands for "zone improvement plan" and was implemented by the US Postal Service.
US postal ZIP Code 02241 is part of Boston, MA.
06500 is the zip code of the US Embassy in Mexico City..