| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Utorohigashi, Hokkaido (ウトロ東) | 099-4355 |
| Postal/ZIP Codes in Utorokagawa, Hokkaido (ウトロ香川) | 099-4351 |
| Postal/ZIP Codes in Utorokogen, Hokkaido (ウトロ高原) | 099-4352 |
| Postal/ZIP Codes in Utoronakajima, Hokkaido (ウトロ中島) | 099-4353 |
| Postal/ZIP Codes in Utoronishi, Hokkaido (ウトロ西) | 099-4354 |