Prosečne GPS koordinate za poštanski broj 306-0303: 36.094, 139.767
Spisak gradova:
>> Egawa 306-0303, Ibarakiken, Sashimagungokamachi, GPS koordinate: 36.0938,139.7674
Spisak gradova:
>> Egawa 306-0303, Ibarakiken, Sashimagungokamachi, GPS koordinate: 36.0938,139.7674