| Sr. No. | Branch Name | Postal Code |
|---|---|---|
| 1 | Oita | |
| 2 | Misa | 870-0108 |
| 3 | Ozai | 870-0251 |
| 4 | Sakanoichi | 870-0309 |
| 5 | Chuo | 870-0822 |
| 6 | Jiyoto | 870-0916 |
| 7 | Sanko | 871-0102 |
| 8 | Matama | 872-1101 |
| 9 | Saikihonan | 876-0813 |
| 10 | Saiki | 876-0813 |
| 11 | Hita | 877-0011 |
| 12 | Bungotakada | 879-0605 |
| 13 | Tashibu | 879-0852 |
| 14 | Tsukumi | 879-2441 |