Average GPS coordinates for Kou Postcode location: 36.372, 138.273. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Kou on map:

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Listing cities & postcodes (3):
>> Naganoken, 381-2704 Kou, Sarashinagun'Oookamura, GPS coordinates: 36.5248,137.9791
>> Naganoken, 384-0801 Kou, Komoroshi, GPS coordinates: 36.3227,138.4355
>> Naganoken, 384-2104 Kou, Kitasakugun'Asashinamura, GPS coordinates: 36.2672,138.404