Gjennomsnittlig GPS-koordinater for postnummer 690-828: 33.503, 126.53

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Notering byer:
>> Ido 1(il)-dong/이도1동 690-828, Jeju-do/제주, Jeju-si/제주시, 1239-1319/1239-1319, GPS-koordinater: 33.50349,126.52975
>> Ido 1(il)-dong/이도1동 690-828, Jeju-do/제주, Jeju-si/제주시, 1600-1690/1600-1690, GPS-koordinater: 33.50344,126.5297
>> Ido 1(il)-dong/이도1동 690-828, Jeju-do/제주, Jeju-si/제주시, 1710-1764/1710-1764, GPS-koordinater: 33.50347,126.52973
>> Ido 1(il)-dong/이도1동 690-828, Jeju-do/제주, Jeju-si/제주시, 1774-1790/1774-1790, GPS-koordinater: 33.50348,126.52974