| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Arakawa (荒川区) | 116-0002 |
| Postal/ZIP Codes in Higashinippori (荒川区) | 116-0014 |
| Postal/ZIP Codes in Higashiogu (荒川区) | 116-0012 |
| Postal/ZIP Codes in Machiya (荒川区) | 116-0001 |
| Postal/ZIP Codes in Minamisenju (荒川区) | 116-0003 |
| Postal/ZIP Codes in Nishinippori (荒川区) | 116-0013 |
| Postal/ZIP Codes in Nishiogu (荒川区) | 116-0011 |
| Postal/ZIP Codes in Others (荒川区) | 116-0000 |