Average GPS coordinates for Eltham Postcode location: -28.722, 153.257. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Eltham on map:

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Listing cities & postcodes (1):
>> New South Wales, 2480 Eltham, NSW NORTH COAST, GPS coordinates: -28.7221,153.2565