Average GPS coordinates for Jinnai Postcode location: 32.588, 130.681. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Jinnai on map:

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Listing cities & postcodes (3):
>> Kumamotoken, 861-4221 Jinnai, Shimomashikigunjounanmachi, GPS coordinates: 32.691,130.7566
>> Kumamotoken, 867-0011 Jinnai, Minamatashi, GPS coordinates: 32.2096,130.411
>> Kumamotoken, 869-1221 Jinnai, Kikuchigun'Oodumachi, GPS coordinates: 32.8634,130.8744