Average GPS coordinates for St Mary Postcode location: -25.917, 152.601. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). St Mary on map:

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Listing cities & postcodes (2):
>> Queensland, 4570 St Mary, SUNSHINE MT ISA, GPS coordinates: -26.1931,152.5564
>> Queensland, 4650 St Mary, GPS coordinates: -25.6401,152.6462