| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Tochiya (秩父市) | 368-0002 |
| Postal/ZIP Codes in Uenomachi (秩父市) | 368-0031 |
| Postal/ZIP Codes in Urayama (秩父市) | 369-1873 |
| Postal/ZIP Codes in Yamada (秩父市) | 368-0004 |
| Postal/ZIP Codes in Yanagidamachi (秩父市) | 368-0015 |
| Postal/ZIP Codes in Yoshida Aguma (秩父市) | 369-1502 |
| Postal/ZIP Codes in Yoshida Hisanaga (秩父市) | 369-1501 |
| Postal/ZIP Codes in Yoshida Isama (秩父市) | 369-1504 |
| Postal/ZIP Codes in Yoshida Otabu (秩父市) | 370-1507 |