Prosečne GPS koordinate za poštanski broj 631-100: 35.215, 128.568
Spisak gradova:
>> Gyowon-dong/교원동 631-100, Gyeongsangnam-do/경남, Masan-si/마산시, GPS koordinate: 35.21531,128.56845
Spisak gradova:
>> Gyowon-dong/교원동 631-100, Gyeongsangnam-do/경남, Masan-si/마산시, GPS koordinate: 35.21531,128.56845