Gjennomsnittlig GPS-koordinater for postnummer 20147: 3.585, 98.676
Notering byer:
>> Harjosari II 20147, North Sumatra, Medan, GPS-koordinater: 3.58523,98.67559
Notering byer:
>> Harjosari II 20147, North Sumatra, Medan, GPS-koordinater: 3.58523,98.67559