Average GPS coordinates for San Isidro Postcode location: 28.417, -110.45. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Isidro on map:

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Listing cities & postcodes (2):
>> Sonora, 83174 San Isidro, Hermosillo, Hermosillo, GPS coordinates: 29.2,-110.7667
>> Sonora, 85208 San Isidro, Cajeme, GPS coordinates: 27.6333,-110.1333