Average GPS coordinates for postcode sw18: 51.449, -0.194

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Listing cities:
>> Wandsworth Town SW18, London, England, GPS coordinates: 51.4488,-0.1941
>> Southfields SW18, London, England, GPS coordinates: 51.4453,-0.2041
>> West Hill SW18, London, England, GPS coordinates: 51.4488,-0.1941
>> Wandsworth SW18, London, England, GPS coordinates: 51.4572,-0.1928
>> Earlsfield SW18, London, England, GPS coordinates: 51.4439,-0.1854