| Sr. No. | Branch Name | Postal Code |
|---|---|---|
| 1 | Ikenoe | 860-0048 |
| 2 | Jiyozan | 860-0067 |
| 3 | Kami Kumamoto | 860-0072 |
| 4 | Kita Kumamoto | 860-0085 |
| 5 | Honten | 860-0812 |
| 6 | Motoyama | 860-0821 |
| 7 | Hiyoshi Daiichi | 860-0834 |
| 8 | Chuo | 860-0842 |
| 9 | Koto | 861-2102 |
| 10 | Kumanan | 861-4101 |
| 11 | Kawashiri | 861-4113 |
| 12 | Akita | 861-4121 |
| 13 | Tenmei | 861-4125 |
| 14 | Rikigo | 861-4133 |
| 15 | Hafuji | 861-5255 |
| 16 | Nakashima | 861-5271 |
| 17 | Hokubu | 861-5521 |
| 18 | Tatsuda | 861-8006 |
| 19 | Oyamatoshima | 861-8041 |
| 20 | Tobu | 861-8046 |
| 21 | Kengun | 862-0911 |
| 22 | Izumi | 862-0949 |
| 23 | Nanbu | 862-0963 |