| Locality | Post Code |
|---|---|
| Ota (燕市) | 959-0108 |
| Otakeshinden (燕市) | 959-0122 |
| Others (燕市) | 959-1200 |
| Sadoyama (燕市) | 959-0202 |
| Saiwaicho (燕市) | 959-1254 |
| Sakuramachi (燕市) | 959-1281 |
| Sannofuchi (燕市) | 959-1207 |
| Sasamagari (燕市) | 959-0117 |
| Sawatari (燕市) | 959-1228 |
| Sazen (燕市) | 959-0101 |
| Sekisaki (燕市) | 959-1206 |
| Shimmachi (燕市) | 959-1255 |
| Shimoaozu (燕市) | 959-0222 |
| Shimochigonoki (燕市) | 959-1223 |
| Shimosuwa (燕市) | 959-0183 |
| Shincho (燕市) | 959-0125 |
| Shineicho (燕市) | 959-1246 |
| Shinkoya (燕市) | 959-0116 |
| Shinseicho (燕市) | 959-1214 |
| Somagi (燕市) | 959-1284 |
| Sugina (燕市) | 959-1273 |
| Sugiyanagi (燕市) | 959-1272 |
| Suidocho (燕市) | 959-1262 |
| Sunakotsuka (燕市) | 959-0103 |
| Suzumemori (燕市) | 959-0205 |
| Takaki (燕市) | 959-0228 |