Prosečne GPS koordinate za poštanski broj 664-820: 35.013, 127.957
Spisak gradova:
>> Seopo-myeon/서포면 664-820, Gyeongsangnam-do/경남, Sacheon-si/사천시, GPS koordinate: 35.01338,127.95723
Spisak gradova:
>> Seopo-myeon/서포면 664-820, Gyeongsangnam-do/경남, Sacheon-si/사천시, GPS koordinate: 35.01338,127.95723