| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Hamanose, Wakayama (浜ノ瀬) | 644-0042 |
| Postal/ZIP Codes in Mio, Wakayama (三尾) | 644-0045 |
| Postal/ZIP Codes in Others, Wakayama (その他) | 644-0000 |
| Postal/ZIP Codes in Tai, Wakayama (田井) | 644-0041 |
| Postal/ZIP Codes in Wada, Wakayama (和田) | 644-0044 |
| Postal/ZIP Codes in Yoshihara, Wakayama (吉原) | 644-0043 |