Average GPS coordinates for San Sai Postcode location: 18.852, 99.045. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Sai on map:

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Listing cities & postcodes (1):
>> Chiang Mai, 50210 San Sai, GPS coordinates: 18.8522,99.0453