Average GPS coordinates for San Mateo Postcode location: -2.071, -79.859. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Mateo on map:

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Listing cities & postcodes (1):
>> Urbina Jado (Salitre), 091905 San Mateo, Guayas, GPS coordinates: -2.07114, -79.85886