| Locality | Post Code |
|---|---|
| Nishihirai (藤岡市) | 375-0044 |
| Okanogo (藤岡市) | 375-0011 |
| Onishi (藤岡市) | 370-1401 |
| Others (藤岡市) | 375-0000 |
| Sakahara (藤岡市) | 370-1404 |
| Sambagawa (藤岡市) | 370-1405 |
| Sambogi (藤岡市) | 375-0037 |
| Shimohino (藤岡市) | 375-0046 |
| Shimokurisu (藤岡市) | 375-0014 |
| Shimoozuka (藤岡市) | 375-0052 |
| Shimotozuka (藤岡市) | 375-0012 |
| Shinozuka (藤岡市) | 375-0017 |
| Shiroishi (藤岡市) | 375-0055 |
| Takayama (藤岡市) | 375-0036 |
| Tatsuishi (藤岡市) | 375-0002 |
| Tatsuishishinden (藤岡市) | 375-0003 |
| Ushita (藤岡市) | 375-0034 |
| Yaba (藤岡市) | 375-0031 |
| Yuzurihara (藤岡市) | 370-1402 |