| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Osakushinden (我孫子市) | 270-1115 |
| Postal/ZIP Codes in Others (我孫子市) | 270-1100 |
| Postal/ZIP Codes in Sageto (我孫子市) | 270-1138 |
| Postal/ZIP Codes in Sakae (我孫子市) | 270-1141 |
| Postal/ZIP Codes in Sengemmaeshinden (我孫子市) | 270-1116 |
| Postal/ZIP Codes in Shibasaki (我孫子市) | 270-1177 |
| Postal/ZIP Codes in Shibasakidai (我孫子市) | 270-1176 |
| Postal/ZIP Codes in Shimonumata (我孫子市) | 270-1117 |
| Postal/ZIP Codes in Shinshinden (我孫子市) | 270-1104 |
| Postal/ZIP Codes in Tennodai (我孫子市) | 270-1143 |
| Postal/ZIP Codes in Tsukushino (我孫子市) | 270-1164 |
| Postal/ZIP Codes in Wakamatsu (我孫子市) | 270-1147 |
| Postal/ZIP Codes in Yobatsukashinden (我孫子市) | 270-1157 |