Average GPS coordinates for Ooi Postcode location: 35.388, 139.969. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Ooi on map:

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Listing cities & postcodes (3):
>> Chibaken, 277-0902 Ooi, Higashikatsushikagunshounanmachi, GPS coordinates: 35.8482,140.004
>> Chibaken, 294-0002 Ooi, Tateyamashi, GPS coordinates: 35.0058,139.9335
>> Chibaken, 299-1103 Ooi, Kimitsushi, GPS coordinates: 35.3108,139.9694