Prosečne GPS koordinate za poštanski broj 306-0422: 36.088, 139.82
Spisak gradova:
>> Ichinoya 306-0422, Ibarakiken, Sashimagunsakaimachi, GPS koordinate: 36.0879,139.8203
Spisak gradova:
>> Ichinoya 306-0422, Ibarakiken, Sashimagunsakaimachi, GPS koordinate: 36.0879,139.8203