El Rancho Los Hoyos belongs to the municipality Zaragoza, San Luis Potosí state and its official ZIP Code is 79554
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 Zaragoza the Zip Code range of the San Luis Potosí state is 78 y 79. To send letters or packages to Zaragoza, San Luis Potosí you must always use the five-digit postal code.
The local area phone code is 444
Check out the San Luis Potosí ZIP Code list
Check out the list of cities with 79554 ZIP Code in México