| Locality | Post Code |
|---|---|
| Kumanomori (燕市) | 959-0112 |
| Kuraseki (燕市) | 959-1271 |
| Magiyama (燕市) | 959-0134 |
| Makigahana (燕市) | 959-0102 |
| Makujima (燕市) | 959-0138 |
| Matashin (燕市) | 959-1215 |
| Matsuhashi (燕市) | 959-1202 |
| Minami (燕市) | 959-1234 |
| Miyacho (燕市) | 959-1257 |
| Mizo (燕市) | 959-0172 |
| Mizokoshin (燕市) | 959-0171 |
| Nagawatari (燕市) | 959-1205 |
| Nakagawa (燕市) | 959-1225 |
| Nakajima (燕市) | 959-0105 |
| Nakamachi (燕市) | 959-1258 |
| Nakasuwa (燕市) | 959-0182 |
| Niibori (燕市) | 959-0133 |
| Nikaido (燕市) | 959-1216 |
| Nishimagi (燕市) | 959-0201 |
| Nomoto (燕市) | 959-0224 |
| Nonakasai (燕市) | 959-0126 |
| Ofunato (燕市) | 959-1212 |
| Oigashima (燕市) | 959-0113 |
| Okawazu (燕市) | 959-0123 |
| Omagari (燕市) | 959-1263 |
| Oseki (燕市) | 959-1287 |