Gjennomsnittlig GPS-koordinater for postnummer 21112: 2.957, 99.065
Notering byer:
>> Banjar 21112, North Sumatra, Pematang Siantar, GPS-koordinater: 2.95701,99.06474
Notering byer:
>> Banjar 21112, North Sumatra, Pematang Siantar, GPS-koordinater: 2.95701,99.06474