Gjennomsnittlig GPS-koordinater for postnummer 300-1633: 35.869, 140.15
Notering byer:
>> Shimoi 300-1633, Ibarakiken, Kitasoumaguntonemachi, GPS-koordinater: 35.8689,140.1496
Notering byer:
>> Shimoi 300-1633, Ibarakiken, Kitasoumaguntonemachi, GPS-koordinater: 35.8689,140.1496