Average GPS coordinates for Tân Sơn Postcode location: 20.601, 105.83. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Tân Sơn on map:

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Listing cities & postcodes (1):
>> Hà Nam, 400000 Tân Sơn, Đồng Bằng Sông Hồng, GPS coordinates: 20.60145,105.82975