La Ranchería Río Viejo belongs to the municipality San Francisco Ixhuatán, Oaxaca state and its official ZIP Code is 70177
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 Francisco Ixhuatán the Zip Code range of the Oaxaca state is 68 a 71. To send letters or packages to San Francisco Ixhuatán, Oaxaca you must always use the five-digit postal code.
The local area phone code is 994
Check out the Oaxaca ZIP Code list
Check out the list of cities with 70177 ZIP Code in México