Average GPS coordinates for San Diego Postcode location: 18.15, -101.883. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Diego on map:

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Listing cities & postcodes (2):
>> Guerrero, 41004 San Diego, Olinala, Olinala, GPS coordinates: 18.15,-101.8833
>> Guerrero, 41300 San Diego, Tlapa de Comonfort, Tlapa de Comonfort, GPS coordinates: 18.15,-101.8833