About postal code 306-0304
The postal code 306-0304 routes mail to Koshu 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
306-0304 - Koshu
Postal code 306-0304 is Koshu in Ibaraki Ken, Japan.
| Postal code | 306-0304 |
| Place | Koshu |
| Region | Ibaraki Ken |
| District | Sashima Gun |
| Country | Japan (JP) |
| Coordinates | 36.1372, 139.8059 (map) |