Average GPS coordinates for postcode po21: 50.777, -0.712

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Listing cities:
>> Nyetimber PO21, Sussex, England, GPS coordinates: 50.7765,-0.7122
>> Bognor Regis PO21, Sussex, England, GPS coordinates: 50.7821,-0.6798
>> Aldwick PO21, Sussex, England, GPS coordinates: 50.7765,-0.7122
>> Pagham PO21, Sussex, England, GPS coordinates: 50.771,-0.7447