| Locality | Postal Code |
|---|---|
| Nikkawa (神栖市) | 314-0114 |
| Okunoya (神栖市) | 314-0116 |
| Onohara (神栖市) | 314-0144 |
| Onoharachuo (神栖市) | 314-0128 |
| Ota (神栖市) | 314-0254 |
| Otashimmachi (神栖市) | 314-0257 |
| Others (神栖市) | 314-0100 |
| Shibasaki (神栖市) | 314-0123 |
| Shimohataki (神栖市) | 314-0131 |
| Shitte (神栖市) | 314-0115 |
| Shittechuo (神栖市) | 314-0112 |
| Suda (神栖市) | 314-0253 |
| Sunayama (神栖市) | 314-0255 |
| Tabata (神栖市) | 314-0126 |
| Takahama (神栖市) | 314-0125 |
| Towada (神栖市) | 314-0102 |
| Tsutsui (神栖市) | 314-0132 |
| Wakamatsuchuo (神栖市) | 314-0256 |
| Wanigawa (神栖市) | 314-0147 |
| Yanagawa (神栖市) | 314-0252 |
| Yanagawachuo (神栖市) | 314-0258 |
| Yatabe (神栖市) | 314-0341 |
| Yokose (神栖市) | 314-0113 |