Average GPS coordinates for San Salvador Postcode location: 20.667, -98.792. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Salvador on map:

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Listing cities & postcodes (2):
>> Hidalgo, 42640 San Salvador, San Salvador, GPS coordinates: 20.2833,-99.0167
>> Hidalgo, 43164 San Salvador, Tlanchinol, GPS coordinates: 21.05,-98.5667