| Locality | Post Code |
|---|---|
| Makomo (行橋市) | 824-0017 |
| Matsubara (行橋市) | 824-0023 |
| Minamiizumi (行橋市) | 824-0036 |
| Minamiohashi (行橋市) | 824-0032 |
| Minoshima (行橋市) | 824-0011 |
| Miyaichimachi (行橋市) | 824-0008 |
| Miyanomori (行橋市) | 824-0057 |
| Mompimachi (行橋市) | 824-0006 |
| Motonaga (行橋市) | 824-0015 |
| Nagai (行橋市) | 824-0014 |
| Nagao (行橋市) | 824-0075 |
| Nakagawa (行橋市) | 824-0053 |
| Nakazukuma (行橋市) | 824-0063 |
| Nishiizumi (行橋市) | 824-0038 |
| Nishimiyaichi (行橋市) | 824-0031 |
| Nishitani (行橋市) | 824-0046 |
| Nobunaga (行橋市) | 824-0068 |
| Nyugaku (行橋市) | 824-0077 |
| Ohashi (行橋市) | 824-0003 |
| Onoi (行橋市) | 824-0041 |
| Osagi (行橋市) | 824-0058 |
| Otani (行橋市) | 824-0045 |
| Others (行橋市) | 824-0000 |
| Ryumatsu (行橋市) | 824-0043 |
| Shimohieda (行橋市) | 824-0054 |
| Shimokenji (行橋市) | 824-0051 |