List of All Postal Codes in Onjuku | ||
|---|---|---|
| Postal Code Code | Postal Code Name | Prefecture |
| 299-5100 | Ikanikeisaiganaibaai | Chiba Prefecture |
| 299-5101 | Takayamada | Chiba Prefecture |
| 299-5102 | Kubo | Chiba Prefecture |
| 299-5103 | Shimmachi | Chiba Prefecture |
| 299-5104 | Rokkemmachi | Chiba Prefecture |
| 299-5105 | Iwawada | Chiba Prefecture |
| 299-5106 | Suka | Chiba Prefecture |
| 299-5107 | Hama | Chiba Prefecture |
| 299-5111 | Kamifuse | Chiba Prefecture |
| 299-5112 | Onjukudai | Chiba Prefecture |
| 299-5113 | Nanamoto | Chiba Prefecture |
| 299-5114 | Jikkoku | Chiba Prefecture |