Prosečne GPS koordinate za poštanski broj 300-0420: 36.012, 140.298
Spisak gradova:
>> Gounaka 300-0420, Ibarakiken, Inashikigunmihomura, GPS koordinate: 36.0119,140.2976
Spisak gradova:
>> Gounaka 300-0420, Ibarakiken, Inashikigunmihomura, GPS koordinate: 36.0119,140.2976