Gjennomsnittlig GPS-koordinater for postnummer 20812: 3.737, 98.453
Notering byer:
>> Pantai Gemi 20812, North Sumatra, Langkat, GPS-koordinater: 3.73667,98.4533
Notering byer:
>> Pantai Gemi 20812, North Sumatra, Langkat, GPS-koordinater: 3.73667,98.4533