Average GPS coordinates for Koshi Postcode location: 37.03, 137.955. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Koshi on map:
Listing cities & postcodes (1):
>> Niigataken, 949-1201 Koshi, Itoigawashi, GPS coordinates: 37.0297,137.9554
Listing cities & postcodes (1):
>> Niigataken, 949-1201 Koshi, Itoigawashi, GPS coordinates: 37.0297,137.9554