Prosečne GPS koordinate za poštanski broj 990-2164: 38.305, 140.36
Spisak gradova:
>> Shinkai 990-2164, Yamagataken, Yamagatashi, GPS koordinate: 38.3048,140.36
Spisak gradova:
>> Shinkai 990-2164, Yamagataken, Yamagatashi, GPS koordinate: 38.3048,140.36