Average GPS coordinates for San Francisco Postcode location: 20.925, -89.035. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Francisco on map:

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Listing cities & postcodes (4):
>> Yucatan, 97390 San Francisco, Uman, GPS coordinates: 20.5,-89.6333
>> Yucatan, 97500 San Francisco, Dzidzantun, GPS coordinates: 21.25,-89.0167
>> Yucatan, 97755 San Francisco, Tinum, GPS coordinates: 20.7,-88.475
>> Yucatan, 97783 San Francisco, Valladolid, Valladolid, GPS coordinates: 21.25,-89.0167