Average GPS coordinates for San Ildefonso Postcode location: 19.486, -99.903. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Ildefonso on map:

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Listing cities & postcodes (3):
>> Mexico, 50780 San Ildefonso, Ixtlahuaca, GPS coordinates: 19.5578,-99.7878
>> Mexico, 51008 San Ildefonso, Villa de Allende, GPS coordinates: 19.3417,-100.1333
>> Mexico, 54470 San Ildefonso, Nicolas Romero, Villa Nicolas Romero, GPS coordinates: 19.5578,-99.7878