Prosečne GPS koordinate za poštanski broj 421-810: 37.519, 126.772

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Spisak gradova:
>> Samjeong-dong/삼정동 421-810, Gyeonggi-do/경기, Ojeong-gu Bucheon-si/부천시 오정구, 196-206/196-206, GPS koordinate: 37.51855,126.77184
>> Samjeong-dong/삼정동 421-810, Gyeonggi-do/경기, Ojeong-gu Bucheon-si/부천시 오정구, 290-294/290-294, GPS koordinate: 37.51859,126.77188
>> Samjeong-dong/삼정동 421-810, Gyeonggi-do/경기, Ojeong-gu Bucheon-si/부천시 오정구, 298-350/298-350, GPS koordinate: 37.51856,126.77185