| Locality | Post Code |
|---|---|
| Obanazawa (尾花沢市) | 999-4221 |
| Oboroke (尾花沢市) | 999-4222 |
| Oginofukuro (尾花沢市) | 999-4552 |
| Oshikiri (尾花沢市) | 999-4205 |
| Others (尾花沢市) | 999-4200 |
| Rokusawa (尾花沢市) | 999-4442 |
| Shimmachi (尾花沢市) | 999-4224 |
| Shimmachichuo (尾花沢市) | 999-4226 |
| Shimoyanagiwatarido (尾花沢市) | 999-4334 |
| Shogon (尾花沢市) | 999-4211 |
| Takahashi (尾花沢市) | 999-4201 |
| Terauchi (尾花沢市) | 999-4551 |
| Tomiyama (尾花沢市) | 999-4206 |
| Tsuruko (尾花沢市) | 999-4443 |
| Tsurumakita (尾花沢市) | 999-4337 |
| Wakabacho (尾花沢市) | 999-4225 |
| Yokomachi (尾花沢市) | 999-4229 |