Prosečne GPS koordinate za poštanski broj 311-3143: 36.225, 140.415
Spisak gradova:
>> Namaisawa 311-3143, Ibarakiken, Higashiibarakigun'Ibarakimachi, GPS koordinate: 36.2254,140.4154
Spisak gradova:
>> Namaisawa 311-3143, Ibarakiken, Higashiibarakigun'Ibarakimachi, GPS koordinate: 36.2254,140.4154