Average GPS coordinates for Yamada Postcode location: 32.63, 130.76. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Yamada on map:

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Listing cities & postcodes (3):
>> Kumamotoken, 861-3547 Yamada, Kamimashikigunyabemachi, GPS coordinates: 32.6962,130.963
>> Kumamotoken, 865-0066 Yamada, Tamanashi, GPS coordinates: 32.9405,130.5409
>> Kumamotoken, 868-0092 Yamada, Kumagunyamaemura, GPS coordinates: 32.2539,130.7752