| Locality | Post Code |
|---|---|
| Omachi (新庄市) | 996-0026 |
| Otemachi (新庄市) | 996-0084 |
| Others (新庄市) | 996-0000 |
| Sakaemachi (新庄市) | 996-0073 |
| Semmoncho (新庄市) | 996-0079 |
| Shimodamachi (新庄市) | 996-0034 |
| Shimokanezawamachi (新庄市) | 996-0033 |
| Shironishimachi (新庄市) | 996-0076 |
| Showa (新庄市) | 999-5101 |
| Suehiromachi (新庄市) | 996-0031 |
| Sumiyoshimachi (新庄市) | 996-0022 |
| Tamommachi (新庄市) | 996-0024 |
| Teppomachi (新庄市) | 996-0035 |
| Tobita (新庄市) | 996-0061 |
| Tokamachi (新庄市) | 996-0091, 999-5191 |
| Tokihamachi (新庄市) | 996-0021 |
| Torigoe (新庄市) | 996-0041 |
| Tsunozawa (新庄市) | 996-0052 |
| Wakabamachi (新庄市) | 996-0025 |
| Yokochimachi (新庄市) | 996-0075 |