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