Prosečne GPS koordinate za poštanski broj 631-090: 35.206, 128.575
Spisak gradova:
>> Chang-dong/창동 631-090, Gyeongsangnam-do/경남, Masan-si/마산시, GPS koordinate: 35.20614,128.57459
Spisak gradova:
>> Chang-dong/창동 631-090, Gyeongsangnam-do/경남, Masan-si/마산시, GPS koordinate: 35.20614,128.57459