Prosečne GPS koordinate za poštanski broj 306-0301: 36.108, 139.763
Spisak gradova:
>> Sannouyama 306-0301, Ibarakiken, Sashimagungokamachi, GPS koordinate: 36.1077,139.7625
Spisak gradova:
>> Sannouyama 306-0301, Ibarakiken, Sashimagungokamachi, GPS koordinate: 36.1077,139.7625