Prosečne GPS koordinate za poštanski broj 357-0066: 35.864, 139.274
Spisak gradova:
>> Koiwai 357-0066, Saitamaken, Hannoushi, GPS koordinate: 35.8638,139.2738
Spisak gradova:
>> Koiwai 357-0066, Saitamaken, Hannoushi, GPS koordinate: 35.8638,139.2738