Average GPS coordinates for Summerholm Postcode location: -27.617, 152.45. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Summerholm on map:

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Listing cities & postcodes (1):
>> Queensland, 4341 Summerholm, GPS coordinates: -27.6167,152.45