Average GPS coordinates for Tanaka Postcode location: 37.456, 138.733. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Tanaka on map:

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Listing cities & postcodes (6):
>> Niigataken, 941-0043 Tanaka, Itoigawashi, GPS coordinates: 37.0113,137.8965
>> Niigataken, 945-0816 Tanaka, Kashiwazakishi, GPS coordinates: 37.3592,138.5655
>> Niigataken, 946-0106 Tanaka, Kitauonumagunhirokamimura, GPS coordinates: 37.2931,138.9911
>> Niigataken, 949-4337 Tanaka, Santougun'Izumozakimachi, GPS coordinates: 37.5042,138.6869
>> Niigataken, 950-1477 Tanaka, Shironeshi, GPS coordinates: 37.7548,139.0181
>> Niigataken, 959-2052 Tanaka, Kitakanbaragunsuibaramachi, GPS coordinates: 37.8112,139.2377