Gjennomsnittlig GPS-koordinater for postnummer 300-1254: 35.981, 140.125
Notering byer:
>> Houyoudai 300-1254, Ibarakiken, Tsukubashi, GPS-koordinater: 35.9814,140.1253
Notering byer:
>> Houyoudai 300-1254, Ibarakiken, Tsukubashi, GPS-koordinater: 35.9814,140.1253