| Sr. No. | Branch Name | Postal Code |
|---|---|---|
| 1 | Kandatsu | 300-0011 |
| 2 | Tsuchiura | 300-0043 |
| 3 | Senzoku-cho | 300-0046 |
| 4 | Tsuchiuranamiki | 300-0069 |
| 5 | Edosaki | 300-0504 |
| 6 | Ushiku | 300-1233 |
| 7 | Kukizaki | 300-1252 |
| 8 | Fujishiro | 300-1512 |
| 9 | Ina | 300-2337 |
| 10 | Ishige | 300-2707 |
| 11 | Oho | 300-3253 |
| 12 | Toride | 302-0024 |
| 13 | Shimozuma | 304-0068 |
| 14 | Tsukuba Chuo | 305-0821 |
| 15 | Yatabe | 305-0854 |
| 16 | Koga | 306-0011 |
| 17 | Sanwa | 306-0126 |
| 18 | Sowa | 306-0226 |
| 19 | Iwai | 306-0632 |
| 20 | Sekijiyo | 308-0126 |
| 21 | Shimodate | 308-0841 |
| 22 | Kiyowa | 309-1107 |
| 23 | Iwase | 309-1216 |
| 24 | Kasama | 309-1611 |
| 25 | Tomobe | 309-1704 |