About postal code 300-0004
The postal code 300-0004 routes mail to Koyamazaki in the Ibaraki Ken region of Japan. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
Japan ยท Postal code
300-0004 - Koyamazaki
Postal code 300-0004 is Koyamazaki in Ibaraki Ken, Japan.
| Postal code | 300-0004 |
| Place | Koyamazaki |
| Region | Ibaraki Ken |
| District | Tsuchiura Shi |
| Country | Japan (JP) |
| Coordinates | 36.1339, 140.1851 (map) |