Prosečne GPS koordinate za poštanski broj 631-430: 35.203, 128.571
Spisak gradova:
>> Seoseong-dong/서성동 631-430, Gyeongsangnam-do/경남, Masan-si/마산시, GPS koordinate: 35.20301,128.57073
Spisak gradova:
>> Seoseong-dong/서성동 631-430, Gyeongsangnam-do/경남, Masan-si/마산시, GPS koordinate: 35.20301,128.57073