Average GPS coordinates for Santiago Postcode location: 20.422, -98.683. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Santiago on map:

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Listing cities & postcodes (3):
>> Hidalgo, 43172 Santiago, Tlahuiltepa, GPS coordinates: 20.85,-98.7333
>> Hidalgo, 43321 Santiago, Atotonilco El Grande, GPS coordinates: 20.3833,-98.9667
>> Hidalgo, 43443 Santiago, San Bartolo Tutotepec, GPS coordinates: 20.0333,-98.35