| Place | Post Code |
|---|---|
| 秋田 (Akita, Hokkaido) | 098-5103 |
| 旭台 (Asahidai, Hokkaido) | 098-5554 |
| 藤井 (Fujii, Hokkaido) | 098-5563 |
| 兵安 (Heian, Hokkaido) | 098-5561 |
| 岩手 (Iwate, Hokkaido) | 098-5101 |
| 上駒 (Kamikoma, Hokkaido) | 098-5564 |
| 上頓別 (Kamitombetsu, Hokkaido) | 098-5111 |
| 神崎 (Kanzaki, Hokkaido) | 098-5562 |
| 寿 (Kotobuki, Hokkaido) | 098-5552 |
| 松音知 (Matsuneshiri, Hokkaido) | 098-5565 |
| 中頓別 (Nakatombetsu, Hokkaido) | 098-5551 |
| その他 (Others, Hokkaido) | 098-5500 |
| 敏音知 (Pinneshiri, Hokkaido) | 098-5113 |
| 小頓別 (Shotombetsu, Hokkaido) | 098-5102 |
| 豊平 (Toyohira, Hokkaido) | 098-5112 |
| 豊泉 (Toyoizumi, Hokkaido) | 098-5555 |
| 弥生 (Yayoi, Hokkaido) | 098-5553 |
| Postal Codes in Esashi | |
|---|---|
| Nakatombetsu (中頓別町) | |
| Hamatombetsu (浜頓別町) | |
| Esashi (枝幸町) | |