| Sr. No. | Branch Name | Postal Code |
|---|---|---|
| 1 | Goriyokakukoen | 040-0011 |
| 2 | Suehiro-cho | 040-0053 |
| 3 | Hakodate Chuo | 040-0063 |
| 4 | Bandai-cho | 040-0075 |
| 5 | Mihara | 041-0806 |
| 6 | Hiyoshi | 041-0841 |
| 7 | Yunokawa | 042-0932 |
| 8 | Okusawaguchi | 047-0017 |
| 9 | Otaru Chuo | 047-0032 |
| 10 | Otaruekimae | 047-0032 |
| 11 | Temiya | 047-0039 |
| 12 | Nanaehama | 049-0111 |
| 13 | Nakajima-cho | 050-0074 |
| 14 | Muroran Chuo | 051-0022 |
| 15 | Date | 052-0024 |
| 16 | Tomakomai Chuo | 053-0022 |
| 17 | Midorimachi | 053-0032 |
| 18 | Tomakomai Kita | 053-0045 |
| 19 | Itoi | 053-0822 |
| 20 | Noboribetsu | 059-0032 |
| 21 | Numanohata | 059-1303 |
| 22 | Kita Hiroshima | 061-1132 |
| 23 | Kita Hiroshima Chuo | 061-1133 |
| 24 | Eniwa Chuo | 061-1414 |
| 25 | Chitosetomioka | 066-0034 |