Prosečne GPS koordinate za poštanski broj 309-1123: 36.309, 140.049
Spisak gradova:
>> Shimogouya 309-1123, Ibarakiken, Makabegunkyouwamachi, GPS koordinate: 36.3088,140.0486
Spisak gradova:
>> Shimogouya 309-1123, Ibarakiken, Makabegunkyouwamachi, GPS koordinate: 36.3088,140.0486