| Locality | Post Code |
|---|---|
| Others (大田区) | 144-0000 |
| Sanno (大田区) | 143-0023 |
| Shimomaruko (大田区) | 146-0092 |
| Shinkamata (大田区) | 144-0054 |
| Showajima (大田区) | 143-0004 |
| Tamagawa (大田区) | 146-0095 |
| Tokai (大田区) | 143-0001 |
| Unoki (大田区) | 146-0091 |
| Yaguchi (大田区) | 146-0093 |
| Yukigayaotsukamachi (大田区) | 145-0067 |
| Reiwajima (大田区) | 135-0093 |