El Rancho Piedras Negras (Piedras Prietas Guasimillas) belongs to the municipality San Ignacio, Sinaloa state and its official ZIP Code is 82925
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 San Ignacio the Zip Code range of the Sinaloa state is 80 a 82. To send letters or packages to San Ignacio, Sinaloa you must always use the five-digit postal code.
The local area phone code is 696
Check out the Sinaloa ZIP Code list
Check out the list of cities with 82925 ZIP Code in México