Prosečne GPS koordinate za poštanski broj 300-0748: 35.913, 140.384
Spisak gradova:
>> Seikyuujima 300-0748, Ibarakiken, Inashikigun'Azumamachi, GPS koordinate: 35.9126,140.384
Spisak gradova:
>> Seikyuujima 300-0748, Ibarakiken, Inashikigun'Azumamachi, GPS koordinate: 35.9126,140.384