| Sr. No. | Branch Name | Postal Code |
|---|---|---|
| 51 | Yamato | 309-1234 |
| 52 | Kasama | 309-1611 |
| 53 | Inada | 309-1635 |
| 54 | Tomobe | 309-1704 |
| 55 | Mito | 310-0021 |
| 56 | Izumi-cho | 310-0026 |
| 57 | Daikumachi | 310-0031 |
| 58 | Mitoekinan | 310-0803 |
| 59 | Yoshida | 310-0836 |
| 60 | Kencho | 310-0852 |
| 61 | Hirasu | 310-0853 |
| 62 | Watari | 310-0903 |
| 63 | Ishikawa-cho | 310-0905 |
| 64 | Miwa | 310-0912 |
| 65 | Sugaya | 311-0105 |
| 66 | Naka | 311-0110 |
| 67 | Nakaminato | 311-1221 |
| 68 | Tsukuriya | 311-1412 |
| 69 | Hokota Chuo | 311-1517 |
| 70 | Hokota | 311-1517 |
| 71 | Itako | 311-2424 |
| 72 | Aso | 311-3832 |
| 73 | Akatsuka | 311-4152 |
| 74 | Hitachi Naka | 312-0052 |
| 75 | Katsuta | 312-0052 |