| Sr. No. | Branch Name | Postal Code |
|---|---|---|
| 1 | Toyosato | 300-2645 |
| 2 | Ishige | 300-2706 |
| 3 | Akeno | 300-4517 |
| 4 | Moriya | 302-0110 |
| 5 | Shimotsuma | 304-0068 |
| 6 | Koga | 306-0011 |
| 7 | Sanwa Minami | 306-0114 |
| 8 | Sanwa | 306-0126 |
| 9 | Sowa | 306-0234 |
| 10 | Iwai | 306-0632 |
| 11 | Shimodate | 308-0031 |
| 12 | Sekijiyo | 308-0126 |
| 13 | Shimodate Minami | 308-0826 |
| 14 | Kawashima | 308-0857 |
| 15 | Haguro | 309-1453 |
| 16 | Kasama | 309-1611 |
| 17 | Tomobe | 309-1705 |