Gjennomsnittlig GPS-koordinater for postnummer 21334: 2.997, 99.802
Notering byer:
>> Sei Merbau 21334, North Sumatra, Tanjung Balai, GPS-koordinater: 2.99673,99.80212
Notering byer:
>> Sei Merbau 21334, North Sumatra, Tanjung Balai, GPS-koordinater: 2.99673,99.80212