Question 1

What data do I get for a zip code?

Accepted Answer

Given a 5-digit Mexican codigo_postal, the API returns its estado, municipio, and the full list of colonias for that code.

Question 2

Can I search without knowing the full zip code?

Accepted Answer

Yes. You can search by partial code (e.g. 6641 returns all codes starting with those digits) with an optional limit, or do a reverse lookup by estado + municipio + optional colonia. Location search is accent- and case-insensitive.

Question 3

Where does the data come from and how current is it?

Accepted Answer

Data is sourced from Correos de México (SEPOMEX) and updated weekly, covering all Mexican postal codes.

Mexico ZIP Codes

Frequently Asked Questions