| Locality | Post Code |
|---|---|
| Higashinakasato (石巻市) | 986-0812 |
| Hirobuchi (石巻市) | 987-1222 |
| Hiyorigaoka (石巻市) | 986-0833 |
| Ibaratsu (石巻市) | 986-0041 |
| Iino (石巻市) | 986-0131 |
| Inai (石巻市) | 986-0003 |
| Isecho (石巻市) | 986-2123 |
| Isemba (石巻市) | 986-0826 |
| Izumicho (石巻市) | 986-0832 |
| Kadonowaki (石巻市) | 986-0853 |
| Kadonowakicho (石巻市) | 986-0834 |
| Kaihoku (石巻市) | 986-0806 |
| Kaisei (石巻市) | 986-0032 |
| Kamaya (石巻市) | 986-0111 |
| Kanomata (石巻市) | 986-1111 |
| Kawaguchicho (石巻市) | 986-0024 |
| Kazumahoncho (石巻市) | 986-0013 |
| Kazumakita (石巻市) | 986-0043 |
| Kazumaminami (石巻市) | 986-0042 |
| Kitakamicho Hashiura (石巻市) | 986-0202 |
| Kitakamicho Jusanhama (石巻市) | 986-0201 |
| Kitakamicho Nagao (石巻市) | 986-0203 |
| Kitakamicho Onagawa (石巻市) | 986-0204 |
| Kitamura (石巻市) | 987-1103 |
| Kitazakai (石巻市) | 986-0123 |
| Kitsunezakihama (石巻市) | 986-2345 |