| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Bankei, Hokkaido (蟠渓) | 052-0113 |
| Postal/ZIP Codes in Benkei, Hokkaido (弁景) | 052-0115 |
| Postal/ZIP Codes in Higashikohan, Hokkaido (東湖畔) | 052-0104 |
| Postal/ZIP Codes in Kamikubonai, Hokkaido (上久保内) | 052-0111 |
| Postal/ZIP Codes in Konai, Hokkaido (幸内) | 052-0114 |
| Postal/ZIP Codes in Kubonai, Hokkaido (久保内) | 052-0112 |
| Postal/ZIP Codes in Minamikubonai, Hokkaido (南久保内) | 052-0116 |
| Postal/ZIP Codes in Nakatoya, Hokkaido (仲洞爺) | 052-0105 |
| Postal/ZIP Codes in Others, Hokkaido (その他) | 052-0100 |
| Postal/ZIP Codes in Showashinzan, Hokkaido (昭和新山) | 052-0102 |
| Postal/ZIP Codes in Sobetsuonsen, Hokkaido (壮瞥温泉) | 052-0103 |
| Postal/ZIP Codes in Takinomachi, Hokkaido (滝之町) | 052-0101 |
| Postal/ZIP Codes in Tatsuka, Hokkaido (立香) | 052-0106 |
| Postal/ZIP Codes in Toyakonsen, Hokkaido (洞爺湖温泉) | 052-0107, 049-5731 |
| Postal Codes in Usu | |
|---|---|
| Postal/ZIP Codes in Sobetsu (壮瞥町) | |