Gjennomsnittlig GPS-koordinater for postnummer 300-0402: 36.007, 140.364
Notering byer:
>> Ooyama 300-0402, Ibarakiken, Inashikigunmihomura, GPS-koordinater: 36.0073,140.3642
Notering byer:
>> Ooyama 300-0402, Ibarakiken, Inashikigunmihomura, GPS-koordinater: 36.0073,140.3642