Prosečne GPS koordinate za poštanski broj 415-821: 37.638, 126.615
Spisak gradova:
>> Yangchon-myeon/양촌면 415-821, Gyeonggi-do/경기, Gimpo-si/김포시, Yuhyeonri/유현리, GPS koordinate: 37.63775,126.61482
Spisak gradova:
>> Yangchon-myeon/양촌면 415-821, Gyeonggi-do/경기, Gimpo-si/김포시, Yuhyeonri/유현리, GPS koordinate: 37.63775,126.61482