| Postal Code | Area | |
|---|---|---|
| 427-0001 | Chiba (千葉) | View |
| 427-0002 | Okusa (大草) | View |
| 427-0003 | Tokoji (東光寺) | View |
| 427-0004 | Kishi (岸) | View |
| 427-0005 | Kishicho (岸町) | View |
| 427-0006 | Achigaya (阿知ケ谷) | View |
| 427-0007 | Noda (野田) | View |
| 427-0008 | Ochiai (落合) | View |
| 427-0009 | Ogawa (尾川) | View |
| 427-0011 | Higashicho (東町) | View |
| 427-0012 | Hosojima (細島) | View |
| 427-0013 | Ouke (御請) | View |
| 427-0014 | Doetsujima (道悦島) | View |
| 427-0015 | Takajimacho (高島町) | View |
| 427-0016 | Horaicho (宝来町) | View |
| 427-0017 | Minami (南) | View |
| 427-0018 | Asahi (旭) | View |
| 427-0019 | Doetsu (道悦) | View |
| 427-0021 | Yanagimachi (柳町) | View |
| 427-0022 | Hontori (本通) | View |