Average GPS coordinates for San Isidro Postcode location: 20.767, -89.65. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Isidro on map:

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Listing cities & postcodes (2):
>> Yucatan, 97218 San Isidro, Merida, Merida, GPS coordinates: 20.7667,-89.65
>> Yucatan, 97581 San Isidro, Homun, GPS coordinates: 20.7667,-89.65