| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Kasuga, Hokkaido (春日) | 044-0112 |
| Postal/ZIP Codes in Kawanishi, Hokkaido (川西) | 044-0131 |
| Postal/ZIP Codes in Kitaoka, Hokkaido (北岡) | 044-0111 |
| Postal/ZIP Codes in Koshin, Hokkaido (更進) | 044-0132 |
| Postal/ZIP Codes in Kyogoku, Hokkaido (京極) | 044-0101 |
| Postal/ZIP Codes in Matsukawa, Hokkaido (松川) | 044-0113 |
| Postal/ZIP Codes in Misaki, Hokkaido (三崎) | 044-0121 |
| Postal/ZIP Codes in Nishiki, Hokkaido (錦) | 044-0124 |
| Postal/ZIP Codes in Others, Hokkaido (その他) | 044-0100 |
| Postal/ZIP Codes in Otomi, Hokkaido (大富) | 044-0122 |
| Postal/ZIP Codes in Toka, Hokkaido (東花) | 044-0125 |
| Postal/ZIP Codes in Wakikata, Hokkaido (脇方) | 044-0123 |