| Locality | Post Code |
|---|---|
| Matsubacho (黒石市) | 036-0313 |
| Matsubara (黒石市) | 036-0517 |
| Michikitacho (黒石市) | 036-0314 |
| Midoricho (黒石市) | 036-0383 |
| Midorigaoka (黒石市) | 036-0524 |
| Miharacho (黒石市) | 036-0339 |
| Minaminakano (黒石市) | 036-0405 |
| Mishima (黒石市) | 036-0536 |
| Motomachi (黒石市) | 036-0387 |
| Nagasaki (黒石市) | 036-0365 |
| Nakagawa (黒石市) | 036-0345 |
| Nakamachi (黒石市) | 036-0377 |
| Nishibabashiri (黒石市) | 036-0507 |
| Nishigaoka (黒石市) | 036-0388 |
| Nishikicho (黒石市) | 036-0372 |
| Nishonai (黒石市) | 036-0403 |
| Nisoshi (黒石市) | 036-0533 |
| Nogiwa (黒石市) | 036-0542 |
| Nozoecho (黒石市) | 036-0326 |
| Nuruyu (黒石市) | 036-0411 |
| Oitamachi (黒石市) | 036-0385 |
| Okawara (黒石市) | 036-0401 |
| Okiura (黒石市) | 036-0402 |
| Okkonoki (黒石市) | 036-0357 |
| Omachi (黒石市) | 036-0384 |
| Others (黒石市) | 036-0300 |