This ZIP Code belongs to the following areas. Below you can see the map of the postal area.
| Prefecture (State) | District | Area | ZIP Code |
|---|---|---|---|
| Ibaraki Ken 茨城県 | Tsukuba Shi つくば市 | Oi 大井 | 300-1243 |
Check the list of Ibaraki Ken ZIP Code.
See all the Japan ZIP Code