Average GPS coordinates for San Diego Postcode location: 29.206, -110.634. (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):
>> Sonora, 83100 San Diego, Hermosillo, Hermosillo, GPS coordinates: 28.0833,-109.55
>> Sonora, 83910 San Diego, Benjamin Hill, GPS coordinates: 30.3278,-111.7181