La Colonia 18 de Marzo belongs to the municipality Rincón de Romos, Aguascalientes state and its official ZIP Code is 20434
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 Rincón de Romos the Zip Code range of the Aguascalientes state is 20. To send letters or packages to Rincón de Romos, Aguascalientes you must always use the five-digit postal code.
The local area phone code is 465
Check out the Aguascalientes ZIP Code list
Check out the list of cities with 20434 ZIP Code in México