La Hacienda Oncán belongs to the municipality Mérida, Yucatán state and its official ZIP Code is 97310
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 Mérida the Zip Code range of the Yucatán state is 97. To send letters or packages to Mérida, Yucatán you must always use the five-digit postal code.
The local area phone code is 999
Check out the Yucatán ZIP Code list
Check out the list of cities with 97310 ZIP Code in México