Average GPS coordinates for Otago Postcode location: -42.809, 147.298. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Otago on map:

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Listing cities & postcodes (1):
>> Tasmania, 7017 Otago, TASMANIA, GPS coordinates: -42.8088,147.2984