Prosečne GPS koordinate za poštanski broj 637-921: 35.306, 128.519
Spisak gradova:
>> Chirwon-myeon/칠원면 637-921, Gyeongsangnam-do/경남, Haman-gun/함안군, Guseongri/구성리, GPS koordinate: 35.30569,128.51908
>> Chirwon-myeon/칠원면 637-921, Gyeongsangnam-do/경남, Haman-gun/함안군, Yongsanri/용산리, GPS koordinate: 35.30578,128.51917
Spisak gradova:
>> Chirwon-myeon/칠원면 637-921, Gyeongsangnam-do/경남, Haman-gun/함안군, Guseongri/구성리, GPS koordinate: 35.30569,128.51908
>> Chirwon-myeon/칠원면 637-921, Gyeongsangnam-do/경남, Haman-gun/함안군, Yongsanri/용산리, GPS koordinate: 35.30578,128.51917