Average GPS coordinates for postcode tw20: 51.422, -0.555

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Listing cities:
>> Cooper's Hill TW20, Surrey, England, GPS coordinates: 51.422,-0.5545
>> Egham TW20, Surrey, England, GPS coordinates: 51.4316,-0.5524
>> Thorpe TW20, Surrey, England, GPS coordinates: 51.406,-0.5357
>> Englefield Green TW20, Surrey, England, GPS coordinates: 51.4284,-0.5755