Prosečne GPS koordinate za poštanski broj 306-0645: 36.057, 139.852
Spisak gradova:
>> Nagasu 306-0645, Ibarakiken, Iwaishi, GPS koordinate: 36.0565,139.8515
Spisak gradova:
>> Nagasu 306-0645, Ibarakiken, Iwaishi, GPS koordinate: 36.0565,139.8515