Average GPS coordinates for Koga Postcode location: 32.834, 130.711. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Koga on map:

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Listing cities & postcodes (6):
>> Kumamotoken, 861-0122 Koga, Kamotogun'Uekimachi, GPS coordinates: 32.9239,130.7256
>> Kumamotoken, 861-0533 Koga, Yamagashi, GPS coordinates: 33.0077,130.71
>> Kumamotoken, 861-2234 Koga, Kamimashikigunmashikimachi, GPS coordinates: 32.7921,130.7897
>> Kumamotoken, 861-4157 Koga, Shimomashikiguntomiaimachi, GPS coordinates: 32.7092,130.6716
>> Kumamotoken, 861-4737 Koga, Shimomashikiguntomochimachi, GPS coordinates: 32.6372,130.865
>> Kumamotoken, 869-0233 Koga, Tamanaguntaimeimachi, GPS coordinates: 32.9326,130.5065