La Colonia 20 Aniversario belongs to the municipality Chihuahua, Chihuahua state and its official ZIP Code is 31137
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 Chihuahua the Zip Code range of the Chihuahua state is 31 a 33. To send letters or packages to Chihuahua, Chihuahua you must always use the five-digit postal code.
The local area phone code is 614
Check out the Chihuahua ZIP Code list
Check out the list of cities with 31137 ZIP Code in México