Prosečne GPS koordinate za poštanski broj 350-0021: 35.909, 139.513
Spisak gradova:
>> Oonakai 350-0021, Saitamaken, Kawagoeshi, GPS koordinate: 35.909,139.5129
Spisak gradova:
>> Oonakai 350-0021, Saitamaken, Kawagoeshi, GPS koordinate: 35.909,139.5129