Average GPS coordinates for postcode sw12: 51.447, -0.138

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Listing cities:
>> Wandsworth Common SW12, London, England, GPS coordinates: 51.4469,-0.1384
>> Balham SW12, London, England, GPS coordinates: 51.4469,-0.1384
>> Clapham South SW12, London, England, GPS coordinates: 51.4469,-0.1384