| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Minamihase (岩沼市) | 989-2454 |
| Postal/ZIP Codes in Nagaoka (岩沼市) | 989-2461 |
| Postal/ZIP Codes in Nishirokkaku (岩沼市) | 989-2446 |
| Postal/ZIP Codes in Ogawa (岩沼市) | 989-2471 |
| Postal/ZIP Codes in Oshiwake (岩沼市) | 989-2423 |
| Postal/ZIP Codes in Otecho (岩沼市) | 989-2442 |
| Postal/ZIP Codes in Others (岩沼市) | 989-2400 |
| Postal/ZIP Codes in Sakaecho (岩沼市) | 989-2473 |
| Postal/ZIP Codes in Sakura (岩沼市) | 989-2433 |
| Postal/ZIP Codes in Satonomori (岩沼市) | 989-2427 |
| Postal/ZIP Codes in Shiga (岩沼市) | 989-2465 |
| Postal/ZIP Codes in Shikishima (岩沼市) | 989-2476 |
| Postal/ZIP Codes in Shimonogo (岩沼市) | 989-2421 |
| Postal/ZIP Codes in Suehiro (岩沼市) | 989-2426 |
| Postal/ZIP Codes in Takekuma (岩沼市) | 989-2452, 989-2459 |
| Postal/ZIP Codes in Takenosato (岩沼市) | 989-2458 |
| Postal/ZIP Codes in Tamauranishi (岩沼市) | 989-2428 |
| Postal/ZIP Codes in Tateshita (岩沼市) | 989-2441 |
| Postal/ZIP Codes in Terashima (岩沼市) | 989-2425 |
| Postal/ZIP Codes in Yamato (岩沼市) | 989-2475 |
| Postal/ZIP Codes in Yamazakura (岩沼市) | 989-2462 |