La Colonia 18 de Marzo belongs to the municipality Monclova, Coahuila state and its official ZIP Code is 25760
The Postal Codes National Catalog is prepared by the Mexican Postal Service and the postal code has 5 digits, depending on the country area. The first two digits identify the state or part of it. In the case of Monclova the Zip Code range of the Coahuila state is 25 a 27. To send letters or packages to Monclova, Coahuila you must always use the five-digit postal code.
The local area phone code is 866
Check out the Coahuila ZIP Code list
Check out the list of cities with 25760 ZIP Code in México