Prosečne GPS koordinate za poštanski broj 305-0821: 36.092, 140.1
Spisak gradova:
>> Kasuga 305-0821, Ibarakiken, Tsukubashi, GPS koordinate: 36.0916,140.0996
Spisak gradova:
>> Kasuga 305-0821, Ibarakiken, Tsukubashi, GPS koordinate: 36.0916,140.0996