| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Otomari (臼杵市) | 875-0033 |
| Postal/ZIP Codes in Otomi (臼杵市) | 875-0077 |
| Postal/ZIP Codes in Sashiu (臼杵市) | 875-0001 |
| Postal/ZIP Codes in Sazuru (臼杵市) | 875-0074 |
| Postal/ZIP Codes in Shitanoe (臼杵市) | 875-0002 |
| Postal/ZIP Codes in Suehiro (臼杵市) | 875-0022 |
| Postal/ZIP Codes in Suwa (臼杵市) | 875-0011 |
| Postal/ZIP Codes in Tai (臼杵市) | 875-0003 |
| Postal/ZIP Codes in Tajiri (臼杵市) | 875-0021 |
| Postal/ZIP Codes in Takayama (臼杵市) | 875-0078 |
| Postal/ZIP Codes in Takeya (臼杵市) | 875-0084 |
| Postal/ZIP Codes in Takeyama (臼杵市) | 875-0079 |
| Postal/ZIP Codes in Tomuro (臼杵市) | 875-0051 |
| Postal/ZIP Codes in Usuki (臼杵市) | 875-0041 |
| Postal/ZIP Codes in Yoshiono (臼杵市) | 875-0071 |