| Place | Post Code |
|---|---|
| 留岡 (Tomeoka, Hokkaido) | 099-0408 |
| 豊里 (Toyosato, Hokkaido) | 099-0412 |
| 若松 (Wakamatsu, Hokkaido) | 099-0423 |
| 若咲内 (Wakasakunai, Hokkaido) | 099-0346 |
| 湯の里 (Yunosato, Hokkaido) | 099-0345 |
| Postal Codes in Mombetsu | |
|---|---|
| Nishiokoppe (西興部村) | |
| Yubetsu (湧別町) | |
| Takinoe (滝上町) | |
| Omu (雄武町) | |
| Okoppe (興部町) | |
| Engaru (遠軽町) | |