| Locality | Post Code |
|---|---|
| Nakajima (石巻市) | 986-0103 |
| Nakajimacho (石巻市) | 986-0845 |
| Nakano (石巻市) | 986-0105 |
| Nakasato (石巻市) | 986-0815 |
| Nakaura (石巻市) | 986-0847 |
| Nakayashiki (石巻市) | 986-0849 |
| Nakaze (石巻市) | 986-0823 |
| Nankocho (石巻市) | 986-0836 |
| Narita (石巻市) | 986-0102 |
| Negishi (石巻市) | 986-2136 |
| Niiyamahama (石巻市) | 986-2521 |
| Nishihamacho (石巻市) | 986-0843 |
| Nishikicho (石巻市) | 986-0877 |
| Nishiyamacho (石巻市) | 986-0876 |
| Numazu (石巻市) | 986-2101 |
| Ogatsucho Funakoshi (石巻市) | 986-1301 |
| Ogatsucho Isehata (石巻市) | 986-1334 |
| Ogatsucho Kamiogatsu (石巻市) | 986-1336 |
| Ogatsucho Kumazawa (石巻市) | 986-1312 |
| Ogatsucho Kuwahama (石巻市) | 986-1313 |
| Ogatsucho Mizuhama (石巻市) | 986-1321 |
| Ogatsucho Myojin (石巻市) | 986-1331 |
| Ogatsucho Naburi (石巻市) | 986-1304 |
| Ogatsucho Ogatsu (石巻市) | 986-1333 |
| Ogatsucho Ohama (石巻市) | 986-1302 |
| Ogatsucho Ojima (石巻市) | 986-1332 |