Prosečne GPS koordinate za poštanski broj 300-1633: 35.869, 140.15
Spisak gradova:
>> Shimoi 300-1633, Ibarakiken, Kitasoumaguntonemachi, GPS koordinate: 35.8689,140.1496
Spisak gradova:
>> Shimoi 300-1633, Ibarakiken, Kitasoumaguntonemachi, GPS koordinate: 35.8689,140.1496