| Postal Code | Area | |
|---|---|---|
| 030-0111 | Arakawa (荒川) | View |
| 030-0112 | Yatsuyaku (八ツ役) | View |
| 030-0113 | Dainitonyamachi (第二問屋町) | View |
| 030-0121 | Myoken (妙見) | View |
| 030-0122 | Nojiri (野尻) | View |
| 030-0123 | Oyasawa (大矢沢) | View |
| 030-0124 | Tamogino (田茂木野) | View |
| 030-0125 | Yotsuishi (四ツ石) | View |
| 030-0131 | Tonyamachi (問屋町) | View |
| 030-0132 | Yokouchi (横内) | View |
| 030-0133 | Moya (雲谷) | View |
| 030-0134 | Goshizawa (合子沢) | View |
| 030-0135 | Shinmachino (新町野) | View |
| 030-0136 | Ushitate (牛館) | View |
| 030-0137 | Oroshimachi (卸町) | View |
| 030-0141 | Uwano (上野) | View |
| 030-0142 | Nogi (野木) | View |
| 030-0143 | Obatakezawa (小畑沢) | View |
| 030-0144 | Obetsunai (大別内) | View |
| 030-0145 | Kanehama (金浜) | View |