Gjennomsnittlig GPS-koordinater for postnummer hp21: 51.806, -0.806
Notering byer:
>> Walton HP21, Buckinghamshire, England, GPS-koordinater: 51.8058,-0.806
Notering byer:
>> Walton HP21, Buckinghamshire, England, GPS-koordinater: 51.8058,-0.806