List of All Postal Codes in Oarai | ||
|---|---|---|
| Postal Code Code | Postal Code Name | Prefecture |
| 311-1300 | Ikanikeisaiganaibaai | Ibaraki Prefecture |
| 311-1301 | Isohamacho | Ibaraki Prefecture |
| 311-1302 | Isomichi | Ibaraki Prefecture |
| 311-1303 | Tokodai | Ibaraki Prefecture |
| 311-1304 | Wado | Ibaraki Prefecture |
| 311-1305 | Minatochuo | Ibaraki Prefecture |
| 311-1306 | Gotanda | Ibaraki Prefecture |
| 311-1307 | Sakuramichi | Ibaraki Prefecture |
| 311-1311 | Onukicho | Ibaraki Prefecture |
| 311-1312 | Kamiyamacho | Ibaraki Prefecture |
| 311-1313 | Naritacho | Ibaraki Prefecture |