Prosečne GPS koordinate za poštanski broj 311-3106: 36.298, 140.408
Spisak gradova:
>> Koiyasu 311-3106, Ibarakiken, Higashiibarakigun'Ibarakimachi, GPS koordinate: 36.2984,140.4084
Spisak gradova:
>> Koiyasu 311-3106, Ibarakiken, Higashiibarakigun'Ibarakimachi, GPS koordinate: 36.2984,140.4084