Average GPS coordinates for El Infiernillo Postcode location: 18.917, -100.35. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). El Infiernillo on map:

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Listing cities & postcodes (1):
>> Mexico, 54878 El Infiernillo, Cuautitlan, Cuautitlan, GPS coordinates: 18.9167,-100.35