| Place | Post Code |
|---|---|
| 高倉 (Takakura, Hokkaido) | 068-1124 |
| 武田 (Takeda, Hokkaido) | 068-1143 |
| 拓新 (Takushin, Hokkaido) | 068-1144 |
| 東明 (Tomei, Hokkaido) | 068-1111 |
| 豊ケ丘 (Toyogaoka, Hokkaido) | 068-1126 |
| 豊野 (Toyono, Hokkaido) | 068-1132 |
| Postal Codes in Ishikari | |
|---|---|
| Shinshinotsu (新篠津村) | |
| Tobetsu (当別町) | |