Average GPS coordinates for Sonomex Postcode location: 29.575, -111.292. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Sonomex on map:

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Listing cities & postcodes (1):
>> Sonora, 83138 Sonomex, Hermosillo, Hermosillo, GPS coordinates: 29.575,-111.2917