Average GPS coordinates for Oomiya Postcode location: 35.115, 137.16. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Oomiya on map:

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Listing cities & postcodes (2):
>> Aichiken, 441-1304 Oomiya, Shinshiroshi, GPS coordinates: 34.9198,137.5205
>> Aichiken, 491-0044 Oomiya, Ichinomiyashi, GPS coordinates: 35.3105,136.8