Prosečne GPS koordinate za poštanski broj 300-0402: 36.007, 140.364
Spisak gradova:
>> Ooyama 300-0402, Ibarakiken, Inashikigunmihomura, GPS koordinate: 36.0073,140.3642
Spisak gradova:
>> Ooyama 300-0402, Ibarakiken, Inashikigunmihomura, GPS koordinate: 36.0073,140.3642